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Finding the Fourth Proportional to 119,872.84, 179,753.64 and 69,967.30

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Solution

The fourth proportional to 119,872.84, 179,753.64 and 69,967.30 is: 104,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,872.84 : 179,753.64 = 69,967.30 : x
  2. Step 2: Convert to fraction form
    119,872.84/179,753.64 = 69,967.30/x
  3. Step 3: Cross multiply
    119,872.84x = 179,753.64 × 69,967.30
  4. Step 4: Simplify right side
    119,872.84x = 12,576,876,855.97
  5. Step 5: Solve for x
    x = 12,576,876,855.97/119,872.84
  6. Step 6: Final answer
    x = 104,918.49

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1.5x scale

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.