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Finding the Fourth Proportional to 115,228.56, 159,045.48 and 75,052.56

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Solution

The fourth proportional to 115,228.56, 159,045.48 and 75,052.56 is: 103,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,228.56 : 159,045.48 = 75,052.56 : x
  2. Step 2: Convert to fraction form
    115,228.56/159,045.48 = 75,052.56/x
  3. Step 3: Cross multiply
    115,228.56x = 159,045.48 × 75,052.56
  4. Step 4: Simplify right side
    115,228.56x = 11,936,770,430.43
  5. Step 5: Solve for x
    x = 11,936,770,430.43/115,228.56
  6. Step 6: Final answer
    x = 103,592.12

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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.