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Finding the Fourth Proportional to 167,258.89, 230,813.41 and 90,778.12

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Solution

The fourth proportional to 167,258.89, 230,813.41 and 90,778.12 is: 125,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,258.89 : 230,813.41 = 90,778.12 : x
  2. Step 2: Convert to fraction form
    167,258.89/230,813.41 = 90,778.12/x
  3. Step 3: Cross multiply
    167,258.89x = 230,813.41 × 90,778.12
  4. Step 4: Simplify right side
    167,258.89x = 20,952,807,430.59
  5. Step 5: Solve for x
    x = 20,952,807,430.59/167,258.89
  6. Step 6: Final answer
    x = 125,271.71

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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.