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Finding the Fourth Proportional to 154,062.80, 231,094.20 and 43,254.80

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Solution

The fourth proportional to 154,062.80, 231,094.20 and 43,254.80 is: 64,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,062.80 : 231,094.20 = 43,254.80 : x
  2. Step 2: Convert to fraction form
    154,062.80/231,094.20 = 43,254.80/x
  3. Step 3: Cross multiply
    154,062.80x = 231,094.20 × 43,254.80
  4. Step 4: Simplify right side
    154,062.80x = 9,995,933,402.16
  5. Step 5: Solve for x
    x = 9,995,933,402.16/154,062.80
  6. Step 6: Final answer
    x = 64,882.20

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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.