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Finding the Fourth Proportional to 144,349.70, 216,462.65 and 49,589.42

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Solution

The fourth proportional to 144,349.70, 216,462.65 and 49,589.42 is: 74,362.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,349.70 : 216,462.65 = 49,589.42 : x
  2. Step 2: Convert to fraction form
    144,349.70/216,462.65 = 49,589.42/x
  3. Step 3: Cross multiply
    144,349.70x = 216,462.65 × 49,589.42
  4. Step 4: Simplify right side
    144,349.70x = 10,734,255,934.90
  5. Step 5: Solve for x
    x = 10,734,255,934.90/144,349.70
  6. Step 6: Final answer
    x = 74,362.86

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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.