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Finding the Fourth Proportional to 116,367.78, 160,532.60 and 99,552.65

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Solution

The fourth proportional to 116,367.78, 160,532.60 and 99,552.65 is: 137,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,367.78 : 160,532.60 = 99,552.65 : x
  2. Step 2: Convert to fraction form
    116,367.78/160,532.60 = 99,552.65/x
  3. Step 3: Cross multiply
    116,367.78x = 160,532.60 × 99,552.65
  4. Step 4: Simplify right side
    116,367.78x = 15,981,445,741.39
  5. Step 5: Solve for x
    x = 15,981,445,741.39/116,367.78
  6. Step 6: Final answer
    x = 137,335.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.