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Finding the Fourth Proportional to 71,068.55, 106,565.56 and 35,491.73

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Solution

The fourth proportional to 71,068.55, 106,565.56 and 35,491.73 is: 53,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,068.55 : 106,565.56 = 35,491.73 : x
  2. Step 2: Convert to fraction form
    71,068.55/106,565.56 = 35,491.73/x
  3. Step 3: Cross multiply
    71,068.55x = 106,565.56 × 35,491.73
  4. Step 4: Simplify right side
    71,068.55x = 3,782,195,461.26
  5. Step 5: Solve for x
    x = 3,782,195,461.26/71,068.55
  6. Step 6: Final answer
    x = 53,218.98

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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.