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Finding the Fourth Proportional to 160,672.80, 240,778.80 and 118,221.60

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Solution

The fourth proportional to 160,672.80, 240,778.80 and 118,221.60 is: 177,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,672.80 : 240,778.80 = 118,221.60 : x
  2. Step 2: Convert to fraction form
    160,672.80/240,778.80 = 118,221.60/x
  3. Step 3: Cross multiply
    160,672.80x = 240,778.80 × 118,221.60
  4. Step 4: Simplify right side
    160,672.80x = 28,465,254,982.08
  5. Step 5: Solve for x
    x = 28,465,254,982.08/160,672.80
  6. Step 6: Final answer
    x = 177,162.87

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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.