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Finding the Fourth Proportional to 117,291.90, 175,937.87 and 28,545.41

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Solution

The fourth proportional to 117,291.90, 175,937.87 and 28,545.41 is: 42,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,291.90 : 175,937.87 = 28,545.41 : x
  2. Step 2: Convert to fraction form
    117,291.90/175,937.87 = 28,545.41/x
  3. Step 3: Cross multiply
    117,291.90x = 175,937.87 × 28,545.41
  4. Step 4: Simplify right side
    117,291.90x = 5,022,217,611.26
  5. Step 5: Solve for x
    x = 5,022,217,611.26/117,291.90
  6. Step 6: Final answer
    x = 42,818.11

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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.