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Finding the Fourth Proportional to 167,132.79, 230,629.55 and 91,681.29

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Solution

The fourth proportional to 167,132.79, 230,629.55 and 91,681.29 is: 126,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,132.79 : 230,629.55 = 91,681.29 : x
  2. Step 2: Convert to fraction form
    167,132.79/230,629.55 = 91,681.29/x
  3. Step 3: Cross multiply
    167,132.79x = 230,629.55 × 91,681.29
  4. Step 4: Simplify right side
    167,132.79x = 21,144,414,197.71
  5. Step 5: Solve for x
    x = 21,144,414,197.71/167,132.79
  6. Step 6: Final answer
    x = 126,512.66

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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.