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Finding the Fourth Proportional to 220,374.33, 330,367.62 and 87,347.96

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Solution

The fourth proportional to 220,374.33, 330,367.62 and 87,347.96 is: 130,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,374.33 : 330,367.62 = 87,347.96 : x
  2. Step 2: Convert to fraction form
    220,374.33/330,367.62 = 87,347.96/x
  3. Step 3: Cross multiply
    220,374.33x = 330,367.62 × 87,347.96
  4. Step 4: Simplify right side
    220,374.33x = 28,856,937,657.06
  5. Step 5: Solve for x
    x = 28,856,937,657.06/220,374.33
  6. Step 6: Final answer
    x = 130,945.10

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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.