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Finding the Fourth Proportional to 115,608.80, 173,410.76 and 53,279.32

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Solution

The fourth proportional to 115,608.80, 173,410.76 and 53,279.32 is: 79,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,608.80 : 173,410.76 = 53,279.32 : x
  2. Step 2: Convert to fraction form
    115,608.80/173,410.76 = 53,279.32/x
  3. Step 3: Cross multiply
    115,608.80x = 173,410.76 × 53,279.32
  4. Step 4: Simplify right side
    115,608.80x = 9,239,207,373.48
  5. Step 5: Solve for x
    x = 9,239,207,373.48/115,608.80
  6. Step 6: Final answer
    x = 79,917.86

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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.