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Finding the Fourth Proportional to 70,711.29, 106,077.86 and 44,036.87

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Solution

The fourth proportional to 70,711.29, 106,077.86 and 44,036.87 is: 66,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,711.29 : 106,077.86 = 44,036.87 : x
  2. Step 2: Convert to fraction form
    70,711.29/106,077.86 = 44,036.87/x
  3. Step 3: Cross multiply
    70,711.29x = 106,077.86 × 44,036.87
  4. Step 4: Simplify right side
    70,711.29x = 4,671,336,180.12
  5. Step 5: Solve for x
    x = 4,671,336,180.12/70,711.29
  6. Step 6: Final answer
    x = 66,062.10

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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.