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Finding the Fourth Proportional to 265,623.52, 398,287.32 and 88,033.72

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Solution

The fourth proportional to 265,623.52, 398,287.32 and 88,033.72 is: 132,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,623.52 : 398,287.32 = 88,033.72 : x
  2. Step 2: Convert to fraction form
    265,623.52/398,287.32 = 88,033.72/x
  3. Step 3: Cross multiply
    265,623.52x = 398,287.32 × 88,033.72
  4. Step 4: Simplify right side
    265,623.52x = 35,062,714,408.43
  5. Step 5: Solve for x
    x = 35,062,714,408.43/265,623.52
  6. Step 6: Final answer
    x = 132,001.54

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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.