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Finding the Fourth Proportional to 144,462.40, 216,709.80 and 44,621.80

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Solution

The fourth proportional to 144,462.40, 216,709.80 and 44,621.80 is: 66,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,462.40 : 216,709.80 = 44,621.80 : x
  2. Step 2: Convert to fraction form
    144,462.40/216,709.80 = 44,621.80/x
  3. Step 3: Cross multiply
    144,462.40x = 216,709.80 × 44,621.80
  4. Step 4: Simplify right side
    144,462.40x = 9,669,981,353.64
  5. Step 5: Solve for x
    x = 9,669,981,353.64/144,462.40
  6. Step 6: Final answer
    x = 66,937.70

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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.