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Finding the Fourth Proportional to 220,617.84, 330,978.60 and 62,848.56

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Solution

The fourth proportional to 220,617.84, 330,978.60 and 62,848.56 is: 94,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,617.84 : 330,978.60 = 62,848.56 : x
  2. Step 2: Convert to fraction form
    220,617.84/330,978.60 = 62,848.56/x
  3. Step 3: Cross multiply
    220,617.84x = 330,978.60 × 62,848.56
  4. Step 4: Simplify right side
    220,617.84x = 20,801,528,400.82
  5. Step 5: Solve for x
    x = 20,801,528,400.82/220,617.84
  6. Step 6: Final answer
    x = 94,287.61

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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.