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Finding the Fourth Proportional to 115,873.20, 173,809.80 and 92,545.20

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Solution

The fourth proportional to 115,873.20, 173,809.80 and 92,545.20 is: 138,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,873.20 : 173,809.80 = 92,545.20 : x
  2. Step 2: Convert to fraction form
    115,873.20/173,809.80 = 92,545.20/x
  3. Step 3: Cross multiply
    115,873.20x = 173,809.80 × 92,545.20
  4. Step 4: Simplify right side
    115,873.20x = 16,085,262,702.96
  5. Step 5: Solve for x
    x = 16,085,262,702.96/115,873.20
  6. Step 6: Final answer
    x = 138,817.80

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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.