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Finding the Fourth Proportional to 119,251.66, 178,582.24 and 87,586.64

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Solution

The fourth proportional to 119,251.66, 178,582.24 and 87,586.64 is: 131,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,251.66 : 178,582.24 = 87,586.64 : x
  2. Step 2: Convert to fraction form
    119,251.66/178,582.24 = 87,586.64/x
  3. Step 3: Cross multiply
    119,251.66x = 178,582.24 × 87,586.64
  4. Step 4: Simplify right side
    119,251.66x = 15,641,417,472.36
  5. Step 5: Solve for x
    x = 15,641,417,472.36/119,251.66
  6. Step 6: Final answer
    x = 131,163.10

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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.