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Finding the Fourth Proportional to 192,488.80, 288,733.20 and 52,264.80

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Solution

The fourth proportional to 192,488.80, 288,733.20 and 52,264.80 is: 78,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,488.80 : 288,733.20 = 52,264.80 : x
  2. Step 2: Convert to fraction form
    192,488.80/288,733.20 = 52,264.80/x
  3. Step 3: Cross multiply
    192,488.80x = 288,733.20 × 52,264.80
  4. Step 4: Simplify right side
    192,488.80x = 15,090,582,951.36
  5. Step 5: Solve for x
    x = 15,090,582,951.36/192,488.80
  6. Step 6: Final answer
    x = 78,397.20

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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.