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Finding the Fourth Proportional to 368,167.28, 552,186.12 and 98,298.78

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Solution

The fourth proportional to 368,167.28, 552,186.12 and 98,298.78 is: 147,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,167.28 : 552,186.12 = 98,298.78 : x
  2. Step 2: Convert to fraction form
    368,167.28/552,186.12 = 98,298.78/x
  3. Step 3: Cross multiply
    368,167.28x = 552,186.12 × 98,298.78
  4. Step 4: Simplify right side
    368,167.28x = 54,279,221,928.93
  5. Step 5: Solve for x
    x = 54,279,221,928.93/368,167.28
  6. Step 6: Final answer
    x = 147,430.87

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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.