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Finding the Fourth Proportional to 119,661.30, 179,491.95 and 56,460.65

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Solution

The fourth proportional to 119,661.30, 179,491.95 and 56,460.65 is: 84,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,661.30 : 179,491.95 = 56,460.65 : x
  2. Step 2: Convert to fraction form
    119,661.30/179,491.95 = 56,460.65/x
  3. Step 3: Cross multiply
    119,661.30x = 179,491.95 × 56,460.65
  4. Step 4: Simplify right side
    119,661.30x = 10,134,231,269.31
  5. Step 5: Solve for x
    x = 10,134,231,269.31/119,661.30
  6. Step 6: Final answer
    x = 84,690.97

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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.