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Finding the Fourth Proportional to 172,479.53, 258,772.19 and 88,299.34

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Solution

The fourth proportional to 172,479.53, 258,772.19 and 88,299.34 is: 132,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.53 : 258,772.19 = 88,299.34 : x
  2. Step 2: Convert to fraction form
    172,479.53/258,772.19 = 88,299.34/x
  3. Step 3: Cross multiply
    172,479.53x = 258,772.19 × 88,299.34
  4. Step 4: Simplify right side
    172,479.53x = 22,849,412,498.93
  5. Step 5: Solve for x
    x = 22,849,412,498.93/172,479.53
  6. Step 6: Final answer
    x = 132,476.08

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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.