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Finding the Fourth Proportional to 225,917.60, 338,876.40 and 57,437.60

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Solution

The fourth proportional to 225,917.60, 338,876.40 and 57,437.60 is: 86,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,917.60 : 338,876.40 = 57,437.60 : x
  2. Step 2: Convert to fraction form
    225,917.60/338,876.40 = 57,437.60/x
  3. Step 3: Cross multiply
    225,917.60x = 338,876.40 × 57,437.60
  4. Step 4: Simplify right side
    225,917.60x = 19,464,247,112.64
  5. Step 5: Solve for x
    x = 19,464,247,112.64/225,917.60
  6. Step 6: Final answer
    x = 86,156.40

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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.