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Finding the Fourth Proportional to 61,605.10, 92,407.65 and 44,765.20

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Solution

The fourth proportional to 61,605.10, 92,407.65 and 44,765.20 is: 67,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,605.10 : 92,407.65 = 44,765.20 : x
  2. Step 2: Convert to fraction form
    61,605.10/92,407.65 = 44,765.20/x
  3. Step 3: Cross multiply
    61,605.10x = 92,407.65 × 44,765.20
  4. Step 4: Simplify right side
    61,605.10x = 4,136,646,933.78
  5. Step 5: Solve for x
    x = 4,136,646,933.78/61,605.10
  6. Step 6: Final answer
    x = 67,147.80

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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.