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Finding the Fourth Proportional to 70,807.43, 106,229.41 and 26,434.55

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Solution

The fourth proportional to 70,807.43, 106,229.41 and 26,434.55 is: 39,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,807.43 : 106,229.41 = 26,434.55 : x
  2. Step 2: Convert to fraction form
    70,807.43/106,229.41 = 26,434.55/x
  3. Step 3: Cross multiply
    70,807.43x = 106,229.41 × 26,434.55
  4. Step 4: Simplify right side
    70,807.43x = 2,808,126,849.60
  5. Step 5: Solve for x
    x = 2,808,126,849.60/70,807.43
  6. Step 6: Final answer
    x = 39,658.65

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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.