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Finding the Fourth Proportional to 71,358.60, 106,908.30 and 43,624.20

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Solution

The fourth proportional to 71,358.60, 106,908.30 and 43,624.20 is: 65,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,358.60 : 106,908.30 = 43,624.20 : x
  2. Step 2: Convert to fraction form
    71,358.60/106,908.30 = 43,624.20/x
  3. Step 3: Cross multiply
    71,358.60x = 106,908.30 × 43,624.20
  4. Step 4: Simplify right side
    71,358.60x = 4,663,789,060.86
  5. Step 5: Solve for x
    x = 4,663,789,060.86/71,358.60
  6. Step 6: Final answer
    x = 65,357.07

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1.5x scale

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.