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Finding the Fourth Proportional to 247,893.90, 342,092.61 and 140,484.48

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Solution

The fourth proportional to 247,893.90, 342,092.61 and 140,484.48 is: 193,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,893.90 : 342,092.61 = 140,484.48 : x
  2. Step 2: Convert to fraction form
    247,893.90/342,092.61 = 140,484.48/x
  3. Step 3: Cross multiply
    247,893.90x = 342,092.61 × 140,484.48
  4. Step 4: Simplify right side
    247,893.90x = 48,058,702,427.69
  5. Step 5: Solve for x
    x = 48,058,702,427.69/247,893.90
  6. Step 6: Final answer
    x = 193,868.03

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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.