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Finding the Fourth Proportional to 160,771.17, 221,608.53 and 126,724.44

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Solution

The fourth proportional to 160,771.17, 221,608.53 and 126,724.44 is: 174,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,771.17 : 221,608.53 = 126,724.44 : x
  2. Step 2: Convert to fraction form
    160,771.17/221,608.53 = 126,724.44/x
  3. Step 3: Cross multiply
    160,771.17x = 221,608.53 × 126,724.44
  4. Step 4: Simplify right side
    160,771.17x = 28,083,216,863.47
  5. Step 5: Solve for x
    x = 28,083,216,863.47/160,771.17
  6. Step 6: Final answer
    x = 174,678.19

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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.