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Finding the Fourth Proportional to 167,358.89, 230,958.05 and 90,878.14

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Solution

The fourth proportional to 167,358.89, 230,958.05 and 90,878.14 is: 125,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,358.89 : 230,958.05 = 90,878.14 : x
  2. Step 2: Convert to fraction form
    167,358.89/230,958.05 = 90,878.14/x
  3. Step 3: Cross multiply
    167,358.89x = 230,958.05 × 90,878.14
  4. Step 4: Simplify right side
    167,358.89x = 20,989,037,048.38
  5. Step 5: Solve for x
    x = 20,989,037,048.38/167,358.89
  6. Step 6: Final answer
    x = 125,413.34

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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.