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Finding the Fourth Proportional to 146,595.80, 219,731.70 and 57,819.80

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Solution

The fourth proportional to 146,595.80, 219,731.70 and 57,819.80 is: 86,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,595.80 : 219,731.70 = 57,819.80 : x
  2. Step 2: Convert to fraction form
    146,595.80/219,731.70 = 57,819.80/x
  3. Step 3: Cross multiply
    146,595.80x = 219,731.70 × 57,819.80
  4. Step 4: Simplify right side
    146,595.80x = 12,704,842,947.66
  5. Step 5: Solve for x
    x = 12,704,842,947.66/146,595.80
  6. Step 6: Final answer
    x = 86,665.80

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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.