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Finding the Fourth Proportional to 123,599.71, 185,187.95 and 67,479.27

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Solution

The fourth proportional to 123,599.71, 185,187.95 and 67,479.27 is: 101,103.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,599.71 : 185,187.95 = 67,479.27 : x
  2. Step 2: Convert to fraction form
    123,599.71/185,187.95 = 67,479.27/x
  3. Step 3: Cross multiply
    123,599.71x = 185,187.95 × 67,479.27
  4. Step 4: Simplify right side
    123,599.71x = 12,496,347,678.80
  5. Step 5: Solve for x
    x = 12,496,347,678.80/123,599.71
  6. Step 6: Final answer
    x = 101,103.37

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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.