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Finding the Fourth Proportional to 119,693.83, 179,539.66 and 45,821.83

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Solution

The fourth proportional to 119,693.83, 179,539.66 and 45,821.83 is: 68,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,693.83 : 179,539.66 = 45,821.83 : x
  2. Step 2: Convert to fraction form
    119,693.83/179,539.66 = 45,821.83/x
  3. Step 3: Cross multiply
    119,693.83x = 179,539.66 × 45,821.83
  4. Step 4: Simplify right side
    119,693.83x = 8,226,835,778.78
  5. Step 5: Solve for x
    x = 8,226,835,778.78/119,693.83
  6. Step 6: Final answer
    x = 68,732.33

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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.