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Finding the Fourth Proportional to 58,221.20, 87,202.20 and 50,445.20

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Solution

The fourth proportional to 58,221.20, 87,202.20 and 50,445.20 is: 75,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.20 : 87,202.20 = 50,445.20 : x
  2. Step 2: Convert to fraction form
    58,221.20/87,202.20 = 50,445.20/x
  3. Step 3: Cross multiply
    58,221.20x = 87,202.20 × 50,445.20
  4. Step 4: Simplify right side
    58,221.20x = 4,398,932,419.44
  5. Step 5: Solve for x
    x = 4,398,932,419.44/58,221.20
  6. Step 6: Final answer
    x = 75,555.51

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1.5x scale

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.