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Finding the Fourth Proportional to 119,901.24, 179,715.12 and 74,943.24

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Solution

The fourth proportional to 119,901.24, 179,715.12 and 74,943.24 is: 112,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,901.24 : 179,715.12 = 74,943.24 : x
  2. Step 2: Convert to fraction form
    119,901.24/179,715.12 = 74,943.24/x
  3. Step 3: Cross multiply
    119,901.24x = 179,715.12 × 74,943.24
  4. Step 4: Simplify right side
    119,901.24x = 13,468,433,369.79
  5. Step 5: Solve for x
    x = 13,468,433,369.79/119,901.24
  6. Step 6: Final answer
    x = 112,329.39

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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.