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Finding the Fourth Proportional to 115,154.73, 172,621.13 and 59,021.19

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Solution

The fourth proportional to 115,154.73, 172,621.13 and 59,021.19 is: 88,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,154.73 : 172,621.13 = 59,021.19 : x
  2. Step 2: Convert to fraction form
    115,154.73/172,621.13 = 59,021.19/x
  3. Step 3: Cross multiply
    115,154.73x = 172,621.13 × 59,021.19
  4. Step 4: Simplify right side
    115,154.73x = 10,188,304,216.64
  5. Step 5: Solve for x
    x = 10,188,304,216.64/115,154.73
  6. Step 6: Final answer
    x = 88,474.91

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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.