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Finding the Fourth Proportional to 92,871.30, 139,343.40 and 36,701.85

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Solution

The fourth proportional to 92,871.30, 139,343.40 and 36,701.85 is: 55,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,871.30 : 139,343.40 = 36,701.85 : x
  2. Step 2: Convert to fraction form
    92,871.30/139,343.40 = 36,701.85/x
  3. Step 3: Cross multiply
    92,871.30x = 139,343.40 × 36,701.85
  4. Step 4: Simplify right side
    92,871.30x = 5,114,160,565.29
  5. Step 5: Solve for x
    x = 5,114,160,565.29/92,871.30
  6. Step 6: Final answer
    x = 55,067.18

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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.