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Finding the Fourth Proportional to 265,346.16, 398,032.92 and 75,791.58

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Solution

The fourth proportional to 265,346.16, 398,032.92 and 75,791.58 is: 113,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,346.16 : 398,032.92 = 75,791.58 : x
  2. Step 2: Convert to fraction form
    265,346.16/398,032.92 = 75,791.58/x
  3. Step 3: Cross multiply
    265,346.16x = 398,032.92 × 75,791.58
  4. Step 4: Simplify right side
    265,346.16x = 30,167,543,898.81
  5. Step 5: Solve for x
    x = 30,167,543,898.81/265,346.16
  6. Step 6: Final answer
    x = 113,691.28

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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.