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Finding the Fourth Proportional to 135,755.61, 187,340.62 and 74,502.33

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Solution

The fourth proportional to 135,755.61, 187,340.62 and 74,502.33 is: 102,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,755.61 : 187,340.62 = 74,502.33 : x
  2. Step 2: Convert to fraction form
    135,755.61/187,340.62 = 74,502.33/x
  3. Step 3: Cross multiply
    135,755.61x = 187,340.62 × 74,502.33
  4. Step 4: Simplify right side
    135,755.61x = 13,957,312,693.64
  5. Step 5: Solve for x
    x = 13,957,312,693.64/135,755.61
  6. Step 6: Final answer
    x = 102,812.05

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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.