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Finding the Fourth Proportional to 167,681.97, 251,523.50 and 105,221.25

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Solution

The fourth proportional to 167,681.97, 251,523.50 and 105,221.25 is: 157,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,681.97 : 251,523.50 = 105,221.25 : x
  2. Step 2: Convert to fraction form
    167,681.97/251,523.50 = 105,221.25/x
  3. Step 3: Cross multiply
    167,681.97x = 251,523.50 × 105,221.25
  4. Step 4: Simplify right side
    167,681.97x = 26,465,616,548.27
  5. Step 5: Solve for x
    x = 26,465,616,548.27/167,681.97
  6. Step 6: Final answer
    x = 157,832.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.