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Finding the Fourth Proportional to 119,640.60, 165,111.29 and 65,925.56

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Solution

The fourth proportional to 119,640.60, 165,111.29 and 65,925.56 is: 90,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,640.60 : 165,111.29 = 65,925.56 : x
  2. Step 2: Convert to fraction form
    119,640.60/165,111.29 = 65,925.56/x
  3. Step 3: Cross multiply
    119,640.60x = 165,111.29 × 65,925.56
  4. Step 4: Simplify right side
    119,640.60x = 10,885,053,100.39
  5. Step 5: Solve for x
    x = 10,885,053,100.39/119,640.60
  6. Step 6: Final answer
    x = 90,981.26

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