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Finding the Fourth Proportional to 61,677.55, 85,115.72 and 36,184.35

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Solution

The fourth proportional to 61,677.55, 85,115.72 and 36,184.35 is: 49,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,677.55 : 85,115.72 = 36,184.35 : x
  2. Step 2: Convert to fraction form
    61,677.55/85,115.72 = 36,184.35/x
  3. Step 3: Cross multiply
    61,677.55x = 85,115.72 × 36,184.35
  4. Step 4: Simplify right side
    61,677.55x = 3,079,857,209.09
  5. Step 5: Solve for x
    x = 3,079,857,209.09/61,677.55
  6. Step 6: Final answer
    x = 49,934.82

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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.