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Finding the Fourth Proportional to 170,868.88, 256,124.92 and 58,515.92

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Solution

The fourth proportional to 170,868.88, 256,124.92 and 58,515.92 is: 87,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.88 : 256,124.92 = 58,515.92 : x
  2. Step 2: Convert to fraction form
    170,868.88/256,124.92 = 58,515.92/x
  3. Step 3: Cross multiply
    170,868.88x = 256,124.92 × 58,515.92
  4. Step 4: Simplify right side
    170,868.88x = 14,987,385,328.73
  5. Step 5: Solve for x
    x = 14,987,385,328.73/170,868.88
  6. Step 6: Final answer
    x = 87,712.78

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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.