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Finding the Fourth Proportional to 79,326.88, 118,828.32 and 44,285.20

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Solution

The fourth proportional to 79,326.88, 118,828.32 and 44,285.20 is: 66,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,326.88 : 118,828.32 = 44,285.20 : x
  2. Step 2: Convert to fraction form
    79,326.88/118,828.32 = 44,285.20/x
  3. Step 3: Cross multiply
    79,326.88x = 118,828.32 × 44,285.20
  4. Step 4: Simplify right side
    79,326.88x = 5,262,335,916.86
  5. Step 5: Solve for x
    x = 5,262,335,916.86/79,326.88
  6. Step 6: Final answer
    x = 66,337.36

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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.