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Finding the Fourth Proportional to 83,479.66, 125,234.07 and 36,731.32

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Solution

The fourth proportional to 83,479.66, 125,234.07 and 36,731.32 is: 55,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,479.66 : 125,234.07 = 36,731.32 : x
  2. Step 2: Convert to fraction form
    83,479.66/125,234.07 = 36,731.32/x
  3. Step 3: Cross multiply
    83,479.66x = 125,234.07 × 36,731.32
  4. Step 4: Simplify right side
    83,479.66x = 4,600,012,700.07
  5. Step 5: Solve for x
    x = 4,600,012,700.07/83,479.66
  6. Step 6: Final answer
    x = 55,103.40

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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.