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Finding the Fourth Proportional to 119,625.71, 165,083.64 and 65,177.60

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Solution

The fourth proportional to 119,625.71, 165,083.64 and 65,177.60 is: 89,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,625.71 : 165,083.64 = 65,177.60 : x
  2. Step 2: Convert to fraction form
    119,625.71/165,083.64 = 65,177.60/x
  3. Step 3: Cross multiply
    119,625.71x = 165,083.64 × 65,177.60
  4. Step 4: Simplify right side
    119,625.71x = 10,759,755,454.46
  5. Step 5: Solve for x
    x = 10,759,755,454.46/119,625.71
  6. Step 6: Final answer
    x = 89,945.18

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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.