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Finding the Fourth Proportional to 160,215.84, 220,843.08 and 126,170.28

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Solution

The fourth proportional to 160,215.84, 220,843.08 and 126,170.28 is: 173,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,215.84 : 220,843.08 = 126,170.28 : x
  2. Step 2: Convert to fraction form
    160,215.84/220,843.08 = 126,170.28/x
  3. Step 3: Cross multiply
    160,215.84x = 220,843.08 × 126,170.28
  4. Step 4: Simplify right side
    160,215.84x = 27,863,833,239.66
  5. Step 5: Solve for x
    x = 27,863,833,239.66/160,215.84
  6. Step 6: Final answer
    x = 173,914.35

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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.