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Finding the Fourth Proportional to 107,060.80, 160,591.20 and 71,809.60

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Solution

The fourth proportional to 107,060.80, 160,591.20 and 71,809.60 is: 107,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,060.80 : 160,591.20 = 71,809.60 : x
  2. Step 2: Convert to fraction form
    107,060.80/160,591.20 = 71,809.60/x
  3. Step 3: Cross multiply
    107,060.80x = 160,591.20 × 71,809.60
  4. Step 4: Simplify right side
    107,060.80x = 11,531,989,835.52
  5. Step 5: Solve for x
    x = 11,531,989,835.52/107,060.80
  6. Step 6: Final answer
    x = 107,714.40

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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.