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Finding the Fourth Proportional to 115,203.06, 159,010.29 and 75,027.06

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Solution

The fourth proportional to 115,203.06, 159,010.29 and 75,027.06 is: 103,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,203.06 : 159,010.29 = 75,027.06 : x
  2. Step 2: Convert to fraction form
    115,203.06/159,010.29 = 75,027.06/x
  3. Step 3: Cross multiply
    115,203.06x = 159,010.29 × 75,027.06
  4. Step 4: Simplify right side
    115,203.06x = 11,930,074,568.45
  5. Step 5: Solve for x
    x = 11,930,074,568.45/115,203.06
  6. Step 6: Final answer
    x = 103,556.92

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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.