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Finding the Fourth Proportional to 218,407.92, 327,618.36 and 60,648

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Solution

The fourth proportional to 218,407.92, 327,618.36 and 60,648 is: 90,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,407.92 : 327,618.36 = 60,648 : x
  2. Step 2: Convert to fraction form
    218,407.92/327,618.36 = 60,648/x
  3. Step 3: Cross multiply
    218,407.92x = 327,618.36 × 60,648
  4. Step 4: Simplify right side
    218,407.92x = 19,869,398,297.28
  5. Step 5: Solve for x
    x = 19,869,398,297.28/218,407.92
  6. Step 6: Final answer
    x = 90,973.80

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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.