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Finding the Fourth Proportional to 173,817.78, 239,888.72 and 105,874.52

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Solution

The fourth proportional to 173,817.78, 239,888.72 and 105,874.52 is: 146,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,817.78 : 239,888.72 = 105,874.52 : x
  2. Step 2: Convert to fraction form
    173,817.78/239,888.72 = 105,874.52/x
  3. Step 3: Cross multiply
    173,817.78x = 239,888.72 × 105,874.52
  4. Step 4: Simplify right side
    173,817.78x = 25,398,103,083.41
  5. Step 5: Solve for x
    x = 25,398,103,083.41/173,817.78
  6. Step 6: Final answer
    x = 146,119.13

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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.