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Finding the Fourth Proportional to 144,902.80, 217,276.44 and 45,020.08

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Solution

The fourth proportional to 144,902.80, 217,276.44 and 45,020.08 is: 67,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,902.80 : 217,276.44 = 45,020.08 : x
  2. Step 2: Convert to fraction form
    144,902.80/217,276.44 = 45,020.08/x
  3. Step 3: Cross multiply
    144,902.80x = 217,276.44 × 45,020.08
  4. Step 4: Simplify right side
    144,902.80x = 9,781,802,710.92
  5. Step 5: Solve for x
    x = 9,781,802,710.92/144,902.80
  6. Step 6: Final answer
    x = 67,505.96

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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.