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Finding the Fourth Proportional to 119,808.60, 179,693.82 and 39,839.91

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Solution

The fourth proportional to 119,808.60, 179,693.82 and 39,839.91 is: 59,753.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,808.60 : 179,693.82 = 39,839.91 : x
  2. Step 2: Convert to fraction form
    119,808.60/179,693.82 = 39,839.91/x
  3. Step 3: Cross multiply
    119,808.60x = 179,693.82 × 39,839.91
  4. Step 4: Simplify right side
    119,808.60x = 7,158,985,616.36
  5. Step 5: Solve for x
    x = 7,158,985,616.36/119,808.60
  6. Step 6: Final answer
    x = 59,753.52

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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.