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Finding the Fourth Proportional to 70,423.92, 105,564.76 and 44,147.08

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Solution

The fourth proportional to 70,423.92, 105,564.76 and 44,147.08 is: 66,176.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,423.92 : 105,564.76 = 44,147.08 : x
  2. Step 2: Convert to fraction form
    70,423.92/105,564.76 = 44,147.08/x
  3. Step 3: Cross multiply
    70,423.92x = 105,564.76 × 44,147.08
  4. Step 4: Simplify right side
    70,423.92x = 4,660,375,904.90
  5. Step 5: Solve for x
    x = 4,660,375,904.90/70,423.92
  6. Step 6: Final answer
    x = 66,176.04

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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.