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Finding the Fourth Proportional to 119,780.84, 179,687.66 and 40,873.88

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Solution

The fourth proportional to 119,780.84, 179,687.66 and 40,873.88 is: 61,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,780.84 : 179,687.66 = 40,873.88 : x
  2. Step 2: Convert to fraction form
    119,780.84/179,687.66 = 40,873.88/x
  3. Step 3: Cross multiply
    119,780.84x = 179,687.66 × 40,873.88
  4. Step 4: Simplify right side
    119,780.84x = 7,344,531,852.32
  5. Step 5: Solve for x
    x = 7,344,531,852.32/119,780.84
  6. Step 6: Final answer
    x = 61,316.42

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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.