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Finding the Fourth Proportional to 248,881.61, 373,377.70 and 71,374.97

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Solution

The fourth proportional to 248,881.61, 373,377.70 and 71,374.97 is: 107,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,881.61 : 373,377.70 = 71,374.97 : x
  2. Step 2: Convert to fraction form
    248,881.61/373,377.70 = 71,374.97/x
  3. Step 3: Cross multiply
    248,881.61x = 373,377.70 × 71,374.97
  4. Step 4: Simplify right side
    248,881.61x = 26,649,822,136.17
  5. Step 5: Solve for x
    x = 26,649,822,136.17/248,881.61
  6. Step 6: Final answer
    x = 107,078.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.