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Finding the Fourth Proportional to 173,689, 239,690.82 and 98,235.88

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Solution

The fourth proportional to 173,689, 239,690.82 and 98,235.88 is: 135,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,689 : 239,690.82 = 98,235.88 : x
  2. Step 2: Convert to fraction form
    173,689/239,690.82 = 98,235.88/x
  3. Step 3: Cross multiply
    173,689x = 239,690.82 × 98,235.88
  4. Step 4: Simplify right side
    173,689x = 23,546,238,630.62
  5. Step 5: Solve for x
    x = 23,546,238,630.62/173,689
  6. Step 6: Final answer
    x = 135,565.51

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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.