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Finding the Fourth Proportional to 172,392.35, 258,591.24 and 54,064.71

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Solution

The fourth proportional to 172,392.35, 258,591.24 and 54,064.71 is: 81,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,392.35 : 258,591.24 = 54,064.71 : x
  2. Step 2: Convert to fraction form
    172,392.35/258,591.24 = 54,064.71/x
  3. Step 3: Cross multiply
    172,392.35x = 258,591.24 × 54,064.71
  4. Step 4: Simplify right side
    172,392.35x = 13,980,660,399.14
  5. Step 5: Solve for x
    x = 13,980,660,399.14/172,392.35
  6. Step 6: Final answer
    x = 81,097.92

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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.