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Finding the Fourth Proportional to 97,086.28, 133,979.04 and 54,645.04

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Solution

The fourth proportional to 97,086.28, 133,979.04 and 54,645.04 is: 75,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,086.28 : 133,979.04 = 54,645.04 : x
  2. Step 2: Convert to fraction form
    97,086.28/133,979.04 = 54,645.04/x
  3. Step 3: Cross multiply
    97,086.28x = 133,979.04 × 54,645.04
  4. Step 4: Simplify right side
    97,086.28x = 7,321,289,999.96
  5. Step 5: Solve for x
    x = 7,321,289,999.96/97,086.28
  6. Step 6: Final answer
    x = 75,410.14

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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.