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Finding the Fourth Proportional to 178,891.85, 246,875.28 and 98,321.42

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Solution

The fourth proportional to 178,891.85, 246,875.28 and 98,321.42 is: 135,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,891.85 : 246,875.28 = 98,321.42 : x
  2. Step 2: Convert to fraction form
    178,891.85/246,875.28 = 98,321.42/x
  3. Step 3: Cross multiply
    178,891.85x = 246,875.28 × 98,321.42
  4. Step 4: Simplify right side
    178,891.85x = 24,273,128,092.50
  5. Step 5: Solve for x
    x = 24,273,128,092.50/178,891.85
  6. Step 6: Final answer
    x = 135,686.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.