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Finding the Fourth Proportional to 113,879.59, 170,923.53 and 57,758.43

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Solution

The fourth proportional to 113,879.59, 170,923.53 and 57,758.43 is: 86,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,879.59 : 170,923.53 = 57,758.43 : x
  2. Step 2: Convert to fraction form
    113,879.59/170,923.53 = 57,758.43/x
  3. Step 3: Cross multiply
    113,879.59x = 170,923.53 × 57,758.43
  4. Step 4: Simplify right side
    113,879.59x = 9,872,275,600.42
  5. Step 5: Solve for x
    x = 9,872,275,600.42/113,879.59
  6. Step 6: Final answer
    x = 86,690.48

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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.