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Finding the Fourth Proportional to 119,603.20, 179,251.20 and 91,763.20

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Solution

The fourth proportional to 119,603.20, 179,251.20 and 91,763.20 is: 137,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,603.20 : 179,251.20 = 91,763.20 : x
  2. Step 2: Convert to fraction form
    119,603.20/179,251.20 = 91,763.20/x
  3. Step 3: Cross multiply
    119,603.20x = 179,251.20 × 91,763.20
  4. Step 4: Simplify right side
    119,603.20x = 16,448,663,715.84
  5. Step 5: Solve for x
    x = 16,448,663,715.84/119,603.20
  6. Step 6: Final answer
    x = 137,526.95

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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.