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Finding the Fourth Proportional to 119,687.88, 179,583.78 and 64,219.08

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Solution

The fourth proportional to 119,687.88, 179,583.78 and 64,219.08 is: 96,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,687.88 : 179,583.78 = 64,219.08 : x
  2. Step 2: Convert to fraction form
    119,687.88/179,583.78 = 64,219.08/x
  3. Step 3: Cross multiply
    119,687.88x = 179,583.78 × 64,219.08
  4. Step 4: Simplify right side
    119,687.88x = 11,532,705,134.52
  5. Step 5: Solve for x
    x = 11,532,705,134.52/119,687.88
  6. Step 6: Final answer
    x = 96,356.50

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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.