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Finding the Fourth Proportional to 119,737.48, 165,238.87 and 66,024.40

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Solution

The fourth proportional to 119,737.48, 165,238.87 and 66,024.40 is: 91,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,737.48 : 165,238.87 = 66,024.40 : x
  2. Step 2: Convert to fraction form
    119,737.48/165,238.87 = 66,024.40/x
  3. Step 3: Cross multiply
    119,737.48x = 165,238.87 × 66,024.40
  4. Step 4: Simplify right side
    119,737.48x = 10,909,797,248.43
  5. Step 5: Solve for x
    x = 10,909,797,248.43/119,737.48
  6. Step 6: Final answer
    x = 91,114.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.