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Finding the Fourth Proportional to 115,253.06, 172,945.17 and 92,027.10

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Solution

The fourth proportional to 115,253.06, 172,945.17 and 92,027.10 is: 138,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,253.06 : 172,945.17 = 92,027.10 : x
  2. Step 2: Convert to fraction form
    115,253.06/172,945.17 = 92,027.10/x
  3. Step 3: Cross multiply
    115,253.06x = 172,945.17 × 92,027.10
  4. Step 4: Simplify right side
    115,253.06x = 15,915,642,454.11
  5. Step 5: Solve for x
    x = 15,915,642,454.11/115,253.06
  6. Step 6: Final answer
    x = 138,093.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.