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Finding the Fourth Proportional to 187,332, 258,548.68 and 139,253.24

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Solution

The fourth proportional to 187,332, 258,548.68 and 139,253.24 is: 192,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,332 : 258,548.68 = 139,253.24 : x
  2. Step 2: Convert to fraction form
    187,332/258,548.68 = 139,253.24/x
  3. Step 3: Cross multiply
    187,332x = 258,548.68 × 139,253.24
  4. Step 4: Simplify right side
    187,332x = 36,003,741,387.72
  5. Step 5: Solve for x
    x = 36,003,741,387.72/187,332
  6. Step 6: Final answer
    x = 192,192.16

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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.