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Finding the Fourth Proportional to 108,381.67, 149,572.52 and 60,632.17

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Solution

The fourth proportional to 108,381.67, 149,572.52 and 60,632.17 is: 83,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,381.67 : 149,572.52 = 60,632.17 : x
  2. Step 2: Convert to fraction form
    108,381.67/149,572.52 = 60,632.17/x
  3. Step 3: Cross multiply
    108,381.67x = 149,572.52 × 60,632.17
  4. Step 4: Simplify right side
    108,381.67x = 9,068,906,459.97
  5. Step 5: Solve for x
    x = 9,068,906,459.97/108,381.67
  6. Step 6: Final answer
    x = 83,675.65

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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.