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Finding the Fourth Proportional to 264,547.48, 396,836.20 and 84,648.72

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Solution

The fourth proportional to 264,547.48, 396,836.20 and 84,648.72 is: 126,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,547.48 : 396,836.20 = 84,648.72 : x
  2. Step 2: Convert to fraction form
    264,547.48/396,836.20 = 84,648.72/x
  3. Step 3: Cross multiply
    264,547.48x = 396,836.20 × 84,648.72
  4. Step 4: Simplify right side
    264,547.48x = 33,591,676,379.66
  5. Step 5: Solve for x
    x = 33,591,676,379.66/264,547.48
  6. Step 6: Final answer
    x = 126,977.87

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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.