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Finding the Fourth Proportional to 143,855,998.80, 215,783,998.20 and 63,076,966.80

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Solution

The fourth proportional to 143,855,998.80, 215,783,998.20 and 63,076,966.80 is: 94,615,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,855,998.80 : 215,783,998.20 = 63,076,966.80 : x
  2. Step 2: Convert to fraction form
    143,855,998.80/215,783,998.20 = 63,076,966.80/x
  3. Step 3: Cross multiply
    143,855,998.80x = 215,783,998.20 × 63,076,966.80
  4. Step 4: Simplify right side
    143,855,998.80x = 13,611,000,090,432,658
  5. Step 5: Solve for x
    x = 13,611,000,090,432,658/143,855,998.80
  6. Step 6: Final answer
    x = 94,615,450.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.