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Finding the Fourth Proportional to 159,650.76, 220,350 and 91,714.33

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Solution

The fourth proportional to 159,650.76, 220,350 and 91,714.33 is: 126,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,650.76 : 220,350 = 91,714.33 : x
  2. Step 2: Convert to fraction form
    159,650.76/220,350 = 91,714.33/x
  3. Step 3: Cross multiply
    159,650.76x = 220,350 × 91,714.33
  4. Step 4: Simplify right side
    159,650.76x = 20,209,252,615.50
  5. Step 5: Solve for x
    x = 20,209,252,615.50/159,650.76
  6. Step 6: Final answer
    x = 126,584.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.