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Finding the Fourth Proportional to 173,898.88, 239,979.20 and 98,446.72

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Solution

The fourth proportional to 173,898.88, 239,979.20 and 98,446.72 is: 135,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,898.88 : 239,979.20 = 98,446.72 : x
  2. Step 2: Convert to fraction form
    173,898.88/239,979.20 = 98,446.72/x
  3. Step 3: Cross multiply
    173,898.88x = 239,979.20 × 98,446.72
  4. Step 4: Simplify right side
    173,898.88x = 23,625,165,108.22
  5. Step 5: Solve for x
    x = 23,625,165,108.22/173,898.88
  6. Step 6: Final answer
    x = 135,855.76

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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.