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Finding the Fourth Proportional to 265,761.32, 398,636.48 and 88,269.86

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Solution

The fourth proportional to 265,761.32, 398,636.48 and 88,269.86 is: 132,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,761.32 : 398,636.48 = 88,269.86 : x
  2. Step 2: Convert to fraction form
    265,761.32/398,636.48 = 88,269.86/x
  3. Step 3: Cross multiply
    265,761.32x = 398,636.48 × 88,269.86
  4. Step 4: Simplify right side
    265,761.32x = 35,187,583,845.96
  5. Step 5: Solve for x
    x = 35,187,583,845.96/265,761.32
  6. Step 6: Final answer
    x = 132,402.96

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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.