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Finding the Fourth Proportional to 61,836.70, 92,645.70 and 52,432.60

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Solution

The fourth proportional to 61,836.70, 92,645.70 and 52,432.60 is: 78,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,836.70 : 92,645.70 = 52,432.60 : x
  2. Step 2: Convert to fraction form
    61,836.70/92,645.70 = 52,432.60/x
  3. Step 3: Cross multiply
    61,836.70x = 92,645.70 × 52,432.60
  4. Step 4: Simplify right side
    61,836.70x = 4,857,654,929.82
  5. Step 5: Solve for x
    x = 4,857,654,929.82/61,836.70
  6. Step 6: Final answer
    x = 78,556.18

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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.