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Finding the Fourth Proportional to 143,856,010.80, 215,784,016.20 and 63,076,978.80

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Solution

The fourth proportional to 143,856,010.80, 215,784,016.20 and 63,076,978.80 is: 94,615,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,010.80 : 215,784,016.20 = 63,076,978.80 : x
  2. Step 2: Convert to fraction form
    143,856,010.80/215,784,016.20 = 63,076,978.80/x
  3. Step 3: Cross multiply
    143,856,010.80x = 215,784,016.20 × 63,076,978.80
  4. Step 4: Simplify right side
    143,856,010.80x = 13,611,003,815,226,256
  5. Step 5: Solve for x
    x = 13,611,003,815,226,256/143,856,010.80
  6. Step 6: Final answer
    x = 94,615,468.20

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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.