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Finding the Fourth Proportional to 265,474.64, 398,279.94 and 88,031.18

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Solution

The fourth proportional to 265,474.64, 398,279.94 and 88,031.18 is: 132,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,474.64 : 398,279.94 = 88,031.18 : x
  2. Step 2: Convert to fraction form
    265,474.64/398,279.94 = 88,031.18/x
  3. Step 3: Cross multiply
    265,474.64x = 398,279.94 × 88,031.18
  4. Step 4: Simplify right side
    265,474.64x = 35,061,053,088.53
  5. Step 5: Solve for x
    x = 35,061,053,088.53/265,474.64
  6. Step 6: Final answer
    x = 132,069.31

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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.