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Finding the Fourth Proportional to 119,868.84, 179,747.64 and 69,963.30

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Solution

The fourth proportional to 119,868.84, 179,747.64 and 69,963.30 is: 104,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,868.84 : 179,747.64 = 69,963.30 : x
  2. Step 2: Convert to fraction form
    119,868.84/179,747.64 = 69,963.30/x
  3. Step 3: Cross multiply
    119,868.84x = 179,747.64 × 69,963.30
  4. Step 4: Simplify right side
    119,868.84x = 12,575,738,061.61
  5. Step 5: Solve for x
    x = 12,575,738,061.61/119,868.84
  6. Step 6: Final answer
    x = 104,912.49

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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.