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Finding the Fourth Proportional to 136,879.16, 205,283.10 and 57,952.76

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Solution

The fourth proportional to 136,879.16, 205,283.10 and 57,952.76 is: 86,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,879.16 : 205,283.10 = 57,952.76 : x
  2. Step 2: Convert to fraction form
    136,879.16/205,283.10 = 57,952.76/x
  3. Step 3: Cross multiply
    136,879.16x = 205,283.10 × 57,952.76
  4. Step 4: Simplify right side
    136,879.16x = 11,896,722,226.36
  5. Step 5: Solve for x
    x = 11,896,722,226.36/136,879.16
  6. Step 6: Final answer
    x = 86,914.05

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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.