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Finding the Fourth Proportional to 146,565.60, 219,805.20 and 57,789.60

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Solution

The fourth proportional to 146,565.60, 219,805.20 and 57,789.60 is: 86,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,565.60 : 219,805.20 = 57,789.60 : x
  2. Step 2: Convert to fraction form
    146,565.60/219,805.20 = 57,789.60/x
  3. Step 3: Cross multiply
    146,565.60x = 219,805.20 × 57,789.60
  4. Step 4: Simplify right side
    146,565.60x = 12,702,454,585.92
  5. Step 5: Solve for x
    x = 12,702,454,585.92/146,565.60
  6. Step 6: Final answer
    x = 86,667.37

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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.