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Finding the Fourth Proportional to 192,465.78, 288,680.08 and 59,310.28

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Solution

The fourth proportional to 192,465.78, 288,680.08 and 59,310.28 is: 88,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,465.78 : 288,680.08 = 59,310.28 : x
  2. Step 2: Convert to fraction form
    192,465.78/288,680.08 = 59,310.28/x
  3. Step 3: Cross multiply
    192,465.78x = 288,680.08 × 59,310.28
  4. Step 4: Simplify right side
    192,465.78x = 17,121,696,375.22
  5. Step 5: Solve for x
    x = 17,121,696,375.22/192,465.78
  6. Step 6: Final answer
    x = 88,959.69

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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.