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Finding the Fourth Proportional to 71,710.45, 107,599.47 and 34,281.92

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Solution

The fourth proportional to 71,710.45, 107,599.47 and 34,281.92 is: 51,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,710.45 : 107,599.47 = 34,281.92 : x
  2. Step 2: Convert to fraction form
    71,710.45/107,599.47 = 34,281.92/x
  3. Step 3: Cross multiply
    71,710.45x = 107,599.47 × 34,281.92
  4. Step 4: Simplify right side
    71,710.45x = 3,688,716,422.58
  5. Step 5: Solve for x
    x = 3,688,716,422.58/71,710.45
  6. Step 6: Final answer
    x = 51,439.04

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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.