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Finding the Fourth Proportional to 225,814.83, 338,722.39 and 57,347.79

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Solution

The fourth proportional to 225,814.83, 338,722.39 and 57,347.79 is: 86,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,814.83 : 338,722.39 = 57,347.79 : x
  2. Step 2: Convert to fraction form
    225,814.83/338,722.39 = 57,347.79/x
  3. Step 3: Cross multiply
    225,814.83x = 338,722.39 × 57,347.79
  4. Step 4: Simplify right side
    225,814.83x = 19,424,980,490.02
  5. Step 5: Solve for x
    x = 19,424,980,490.02/225,814.83
  6. Step 6: Final answer
    x = 86,021.72

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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.