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Finding the Fourth Proportional to 96,993.65, 133,775.28 and 63,013.01

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Solution

The fourth proportional to 96,993.65, 133,775.28 and 63,013.01 is: 86,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,993.65 : 133,775.28 = 63,013.01 : x
  2. Step 2: Convert to fraction form
    96,993.65/133,775.28 = 63,013.01/x
  3. Step 3: Cross multiply
    96,993.65x = 133,775.28 × 63,013.01
  4. Step 4: Simplify right side
    96,993.65x = 8,429,582,387.52
  5. Step 5: Solve for x
    x = 8,429,582,387.52/96,993.65
  6. Step 6: Final answer
    x = 86,908.61

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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.