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Finding the Fourth Proportional to 110,068.65, 151,910.79 and 61,673.85

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Solution

The fourth proportional to 110,068.65, 151,910.79 and 61,673.85 is: 85,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,068.65 : 151,910.79 = 61,673.85 : x
  2. Step 2: Convert to fraction form
    110,068.65/151,910.79 = 61,673.85/x
  3. Step 3: Cross multiply
    110,068.65x = 151,910.79 × 61,673.85
  4. Step 4: Simplify right side
    110,068.65x = 9,368,923,275.84
  5. Step 5: Solve for x
    x = 9,368,923,275.84/110,068.65
  6. Step 6: Final answer
    x = 85,118.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.