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Finding the Fourth Proportional to 187,672.71, 258,988.49 and 101,632.38

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Solution

The fourth proportional to 187,672.71, 258,988.49 and 101,632.38 is: 140,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,672.71 : 258,988.49 = 101,632.38 : x
  2. Step 2: Convert to fraction form
    187,672.71/258,988.49 = 101,632.38/x
  3. Step 3: Cross multiply
    187,672.71x = 258,988.49 × 101,632.38
  4. Step 4: Simplify right side
    187,672.71x = 26,321,616,123.14
  5. Step 5: Solve for x
    x = 26,321,616,123.14/187,672.71
  6. Step 6: Final answer
    x = 140,252.76

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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.