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Finding the Fourth Proportional to 99,294.67, 137,027.57 and 53,972.75

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Solution

The fourth proportional to 99,294.67, 137,027.57 and 53,972.75 is: 74,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,294.67 : 137,027.57 = 53,972.75 : x
  2. Step 2: Convert to fraction form
    99,294.67/137,027.57 = 53,972.75/x
  3. Step 3: Cross multiply
    99,294.67x = 137,027.57 × 53,972.75
  4. Step 4: Simplify right side
    99,294.67x = 7,395,754,778.72
  5. Step 5: Solve for x
    x = 7,395,754,778.72/99,294.67
  6. Step 6: Final answer
    x = 74,482.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.