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Finding the Fourth Proportional to 144,562.70, 216,876.45 and 55,808.30

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Solution

The fourth proportional to 144,562.70, 216,876.45 and 55,808.30 is: 83,724.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,562.70 : 216,876.45 = 55,808.30 : x
  2. Step 2: Convert to fraction form
    144,562.70/216,876.45 = 55,808.30/x
  3. Step 3: Cross multiply
    144,562.70x = 216,876.45 × 55,808.30
  4. Step 4: Simplify right side
    144,562.70x = 12,103,505,984.54
  5. Step 5: Solve for x
    x = 12,103,505,984.54/144,562.70
  6. Step 6: Final answer
    x = 83,724.96

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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.