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Finding the Fourth Proportional to 160,115.69, 220,971.09 and 88,494.17

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Solution

The fourth proportional to 160,115.69, 220,971.09 and 88,494.17 is: 122,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,115.69 : 220,971.09 = 88,494.17 : x
  2. Step 2: Convert to fraction form
    160,115.69/220,971.09 = 88,494.17/x
  3. Step 3: Cross multiply
    160,115.69x = 220,971.09 × 88,494.17
  4. Step 4: Simplify right side
    160,115.69x = 19,554,653,203.55
  5. Step 5: Solve for x
    x = 19,554,653,203.55/160,115.69
  6. Step 6: Final answer
    x = 122,128.28

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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.