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Finding the Fourth Proportional to 220,268, 330,400.92 and 62,496.74

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Solution

The fourth proportional to 220,268, 330,400.92 and 62,496.74 is: 93,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,268 : 330,400.92 = 62,496.74 : x
  2. Step 2: Convert to fraction form
    220,268/330,400.92 = 62,496.74/x
  3. Step 3: Cross multiply
    220,268x = 330,400.92 × 62,496.74
  4. Step 4: Simplify right side
    220,268x = 20,648,980,393.00
  5. Step 5: Solve for x
    x = 20,648,980,393.00/220,268
  6. Step 6: Final answer
    x = 93,744.80

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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.