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Finding the Fourth Proportional to 136,060.93, 187,766.33 and 74,809.71

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Solution

The fourth proportional to 136,060.93, 187,766.33 and 74,809.71 is: 103,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,060.93 : 187,766.33 = 74,809.71 : x
  2. Step 2: Convert to fraction form
    136,060.93/187,766.33 = 74,809.71/x
  3. Step 3: Cross multiply
    136,060.93x = 187,766.33 × 74,809.71
  4. Step 4: Simplify right side
    136,060.93x = 14,046,744,882.09
  5. Step 5: Solve for x
    x = 14,046,744,882.09/136,060.93
  6. Step 6: Final answer
    x = 103,238.64

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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.