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Finding the Fourth Proportional to 102,469.59, 141,367.28 and 62,168.58

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Solution

The fourth proportional to 102,469.59, 141,367.28 and 62,168.58 is: 85,767.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,469.59 : 141,367.28 = 62,168.58 : x
  2. Step 2: Convert to fraction form
    102,469.59/141,367.28 = 62,168.58/x
  3. Step 3: Cross multiply
    102,469.59x = 141,367.28 × 62,168.58
  4. Step 4: Simplify right side
    102,469.59x = 8,788,602,745.22
  5. Step 5: Solve for x
    x = 8,788,602,745.22/102,469.59
  6. Step 6: Final answer
    x = 85,767.91

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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.