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Finding the Fourth Proportional to 136,924.56, 205,298.92 and 57,017.92

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Solution

The fourth proportional to 136,924.56, 205,298.92 and 57,017.92 is: 85,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,924.56 : 205,298.92 = 57,017.92 : x
  2. Step 2: Convert to fraction form
    136,924.56/205,298.92 = 57,017.92/x
  3. Step 3: Cross multiply
    136,924.56x = 205,298.92 × 57,017.92
  4. Step 4: Simplify right side
    136,924.56x = 11,705,717,396.65
  5. Step 5: Solve for x
    x = 11,705,717,396.65/136,924.56
  6. Step 6: Final answer
    x = 85,490.27

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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.