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Finding the Fourth Proportional to 160,124.70, 220,968.23 and 87,524.33

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Solution

The fourth proportional to 160,124.70, 220,968.23 and 87,524.33 is: 120,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,124.70 : 220,968.23 = 87,524.33 : x
  2. Step 2: Convert to fraction form
    160,124.70/220,968.23 = 87,524.33/x
  3. Step 3: Cross multiply
    160,124.70x = 220,968.23 × 87,524.33
  4. Step 4: Simplify right side
    160,124.70x = 19,340,097,010.22
  5. Step 5: Solve for x
    x = 19,340,097,010.22/160,124.70
  6. Step 6: Final answer
    x = 120,781.47

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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.