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Finding the Fourth Proportional to 92,682.17, 138,929.78 and 36,500.57

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Solution

The fourth proportional to 92,682.17, 138,929.78 and 36,500.57 is: 54,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,682.17 : 138,929.78 = 36,500.57 : x
  2. Step 2: Convert to fraction form
    92,682.17/138,929.78 = 36,500.57/x
  3. Step 3: Cross multiply
    92,682.17x = 138,929.78 × 36,500.57
  4. Step 4: Simplify right side
    92,682.17x = 5,071,016,859.04
  5. Step 5: Solve for x
    x = 5,071,016,859.04/92,682.17
  6. Step 6: Final answer
    x = 54,714.05

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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.