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Finding the Fourth Proportional to 99,966.80, 149,950.20 and 26,094.80

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Solution

The fourth proportional to 99,966.80, 149,950.20 and 26,094.80 is: 39,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,966.80 : 149,950.20 = 26,094.80 : x
  2. Step 2: Convert to fraction form
    99,966.80/149,950.20 = 26,094.80/x
  3. Step 3: Cross multiply
    99,966.80x = 149,950.20 × 26,094.80
  4. Step 4: Simplify right side
    99,966.80x = 3,912,920,478.96
  5. Step 5: Solve for x
    x = 3,912,920,478.96/99,966.80
  6. Step 6: Final answer
    x = 39,142.20

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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.