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Finding the Fourth Proportional to 99,937.40, 149,906.70 and 29,817.32

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Solution

The fourth proportional to 99,937.40, 149,906.70 and 29,817.32 is: 44,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,937.40 : 149,906.70 = 29,817.32 : x
  2. Step 2: Convert to fraction form
    99,937.40/149,906.70 = 29,817.32/x
  3. Step 3: Cross multiply
    99,937.40x = 149,906.70 × 29,817.32
  4. Step 4: Simplify right side
    99,937.40x = 4,469,815,294.51
  5. Step 5: Solve for x
    x = 4,469,815,294.51/99,937.40
  6. Step 6: Final answer
    x = 44,726.15

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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.