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Finding the Fourth Proportional to 99,305.20, 148,918.20 and 32,726.80

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Solution

The fourth proportional to 99,305.20, 148,918.20 and 32,726.80 is: 49,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,305.20 : 148,918.20 = 32,726.80 : x
  2. Step 2: Convert to fraction form
    99,305.20/148,918.20 = 32,726.80/x
  3. Step 3: Cross multiply
    99,305.20x = 148,918.20 × 32,726.80
  4. Step 4: Simplify right side
    99,305.20x = 4,873,616,147.76
  5. Step 5: Solve for x
    x = 4,873,616,147.76/99,305.20
  6. Step 6: Final answer
    x = 49,077.15

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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.