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Finding the Fourth Proportional to 96,479.79, 133,148.25 and 54,040.92

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Solution

The fourth proportional to 96,479.79, 133,148.25 and 54,040.92 is: 74,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,479.79 : 133,148.25 = 54,040.92 : x
  2. Step 2: Convert to fraction form
    96,479.79/133,148.25 = 54,040.92/x
  3. Step 3: Cross multiply
    96,479.79x = 133,148.25 × 54,040.92
  4. Step 4: Simplify right side
    96,479.79x = 7,195,453,926.39
  5. Step 5: Solve for x
    x = 7,195,453,926.39/96,479.79
  6. Step 6: Final answer
    x = 74,579.91

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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.