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Finding the Fourth Proportional to 60,765.30, 91,135.80 and 29,175.30

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Solution

The fourth proportional to 60,765.30, 91,135.80 and 29,175.30 is: 43,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,765.30 : 91,135.80 = 29,175.30 : x
  2. Step 2: Convert to fraction form
    60,765.30/91,135.80 = 29,175.30/x
  3. Step 3: Cross multiply
    60,765.30x = 91,135.80 × 29,175.30
  4. Step 4: Simplify right side
    60,765.30x = 2,658,914,305.74
  5. Step 5: Solve for x
    x = 2,658,914,305.74/60,765.30
  6. Step 6: Final answer
    x = 43,757.12

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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.