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Finding the Fourth Proportional to 119,326.99, 178,990.42 and 35,087.85

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Solution

The fourth proportional to 119,326.99, 178,990.42 and 35,087.85 is: 52,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,326.99 : 178,990.42 = 35,087.85 : x
  2. Step 2: Convert to fraction form
    119,326.99/178,990.42 = 35,087.85/x
  3. Step 3: Cross multiply
    119,326.99x = 178,990.42 × 35,087.85
  4. Step 4: Simplify right side
    119,326.99x = 6,280,389,008.40
  5. Step 5: Solve for x
    x = 6,280,389,008.40/119,326.99
  6. Step 6: Final answer
    x = 52,631.76

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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.