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Finding the Fourth Proportional to 276,031.12, 414,134.20 and 98,534.32

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Solution

The fourth proportional to 276,031.12, 414,134.20 and 98,534.32 is: 147,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,031.12 : 414,134.20 = 98,534.32 : x
  2. Step 2: Convert to fraction form
    276,031.12/414,134.20 = 98,534.32/x
  3. Step 3: Cross multiply
    276,031.12x = 414,134.20 × 98,534.32
  4. Step 4: Simplify right side
    276,031.12x = 40,806,431,785.74
  5. Step 5: Solve for x
    x = 40,806,431,785.74/276,031.12
  6. Step 6: Final answer
    x = 147,832.72

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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.