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Finding the Fourth Proportional to 267,079.80, 400,101.30 and 248,417.40

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Solution

The fourth proportional to 267,079.80, 400,101.30 and 248,417.40 is: 372,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,079.80 : 400,101.30 = 248,417.40 : x
  2. Step 2: Convert to fraction form
    267,079.80/400,101.30 = 248,417.40/x
  3. Step 3: Cross multiply
    267,079.80x = 400,101.30 × 248,417.40
  4. Step 4: Simplify right side
    267,079.80x = 99,392,124,682.62
  5. Step 5: Solve for x
    x = 99,392,124,682.62/267,079.80
  6. Step 6: Final answer
    x = 372,143.92

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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.