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Finding the Fourth Proportional to 61,893.10, 92,839.65 and 40,897.90

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Solution

The fourth proportional to 61,893.10, 92,839.65 and 40,897.90 is: 61,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,893.10 : 92,839.65 = 40,897.90 : x
  2. Step 2: Convert to fraction form
    61,893.10/92,839.65 = 40,897.90/x
  3. Step 3: Cross multiply
    61,893.10x = 92,839.65 × 40,897.90
  4. Step 4: Simplify right side
    61,893.10x = 3,796,946,721.74
  5. Step 5: Solve for x
    x = 3,796,946,721.74/61,893.10
  6. Step 6: Final answer
    x = 61,346.85

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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.