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Finding the Fourth Proportional to 173,630, 239,610.84 and 94,142

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Solution

The fourth proportional to 173,630, 239,610.84 and 94,142 is: 129,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,630 : 239,610.84 = 94,142 : x
  2. Step 2: Convert to fraction form
    173,630/239,610.84 = 94,142/x
  3. Step 3: Cross multiply
    173,630x = 239,610.84 × 94,142
  4. Step 4: Simplify right side
    173,630x = 22,557,443,699.28
  5. Step 5: Solve for x
    x = 22,557,443,699.28/173,630
  6. Step 6: Final answer
    x = 129,916.74

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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.