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Finding the Fourth Proportional to 124,562.76, 171,918.63 and 73,572.18

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Solution

The fourth proportional to 124,562.76, 171,918.63 and 73,572.18 is: 101,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,562.76 : 171,918.63 = 73,572.18 : x
  2. Step 2: Convert to fraction form
    124,562.76/171,918.63 = 73,572.18/x
  3. Step 3: Cross multiply
    124,562.76x = 171,918.63 × 73,572.18
  4. Step 4: Simplify right side
    124,562.76x = 12,648,428,391.71
  5. Step 5: Solve for x
    x = 12,648,428,391.71/124,562.76
  6. Step 6: Final answer
    x = 101,542.62

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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.