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Finding the Fourth Proportional to 220,320, 330,479.19 and 62,548.47

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Solution

The fourth proportional to 220,320, 330,479.19 and 62,548.47 is: 93,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,320 : 330,479.19 = 62,548.47 : x
  2. Step 2: Convert to fraction form
    220,320/330,479.19 = 62,548.47/x
  3. Step 3: Cross multiply
    220,320x = 330,479.19 × 62,548.47
  4. Step 4: Simplify right side
    220,320x = 20,670,967,701.34
  5. Step 5: Solve for x
    x = 20,670,967,701.34/220,320
  6. Step 6: Final answer
    x = 93,822.48

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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.