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Finding the Fourth Proportional to 173,481, 239,403.78 and 93,993

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Solution

The fourth proportional to 173,481, 239,403.78 and 93,993 is: 129,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,481 : 239,403.78 = 93,993 : x
  2. Step 2: Convert to fraction form
    173,481/239,403.78 = 93,993/x
  3. Step 3: Cross multiply
    173,481x = 239,403.78 × 93,993
  4. Step 4: Simplify right side
    173,481x = 22,502,279,493.54
  5. Step 5: Solve for x
    x = 22,502,279,493.54/173,481
  6. Step 6: Final answer
    x = 129,710.34

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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.