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Finding the Fourth Proportional to 265,832.32, 398,815.72 and 88,340.24

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Solution

The fourth proportional to 265,832.32, 398,815.72 and 88,340.24 is: 132,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,832.32 : 398,815.72 = 88,340.24 : x
  2. Step 2: Convert to fraction form
    265,832.32/398,815.72 = 88,340.24/x
  3. Step 3: Cross multiply
    265,832.32x = 398,815.72 × 88,340.24
  4. Step 4: Simplify right side
    265,832.32x = 35,231,476,420.57
  5. Step 5: Solve for x
    x = 35,231,476,420.57/265,832.32
  6. Step 6: Final answer
    x = 132,532.70

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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.