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Finding the Fourth Proportional to 265,880.25, 398,734.11 and 88,339.59

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Solution

The fourth proportional to 265,880.25, 398,734.11 and 88,339.59 is: 132,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,880.25 : 398,734.11 = 88,339.59 : x
  2. Step 2: Convert to fraction form
    265,880.25/398,734.11 = 88,339.59/x
  3. Step 3: Cross multiply
    265,880.25x = 398,734.11 × 88,339.59
  4. Step 4: Simplify right side
    265,880.25x = 35,224,007,796.41
  5. Step 5: Solve for x
    x = 35,224,007,796.41/265,880.25
  6. Step 6: Final answer
    x = 132,480.72

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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.