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Finding the Fourth Proportional to 99,269.70, 148,890.15 and 29,141.70

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Solution

The fourth proportional to 99,269.70, 148,890.15 and 29,141.70 is: 43,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,269.70 : 148,890.15 = 29,141.70 : x
  2. Step 2: Convert to fraction form
    99,269.70/148,890.15 = 29,141.70/x
  3. Step 3: Cross multiply
    99,269.70x = 148,890.15 × 29,141.70
  4. Step 4: Simplify right side
    99,269.70x = 4,338,912,084.26
  5. Step 5: Solve for x
    x = 4,338,912,084.26/99,269.70
  6. Step 6: Final answer
    x = 43,708.32

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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.