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Finding the Fourth Proportional to 117,531.40, 176,469.90 and 82,625.80

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Solution

The fourth proportional to 117,531.40, 176,469.90 and 82,625.80 is: 124,060.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,531.40 : 176,469.90 = 82,625.80 : x
  2. Step 2: Convert to fraction form
    117,531.40/176,469.90 = 82,625.80/x
  3. Step 3: Cross multiply
    117,531.40x = 176,469.90 × 82,625.80
  4. Step 4: Simplify right side
    117,531.40x = 14,580,966,663.42
  5. Step 5: Solve for x
    x = 14,580,966,663.42/117,531.40
  6. Step 6: Final answer
    x = 124,060.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.