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Finding the Fourth Proportional to 227,978.38, 314,626.45 and 126,001.64

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Solution

The fourth proportional to 227,978.38, 314,626.45 and 126,001.64 is: 173,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,978.38 : 314,626.45 = 126,001.64 : x
  2. Step 2: Convert to fraction form
    227,978.38/314,626.45 = 126,001.64/x
  3. Step 3: Cross multiply
    227,978.38x = 314,626.45 × 126,001.64
  4. Step 4: Simplify right side
    227,978.38x = 39,643,448,687.38
  5. Step 5: Solve for x
    x = 39,643,448,687.38/227,978.38
  6. Step 6: Final answer
    x = 173,891.26

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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.