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Finding the Fourth Proportional to 79,264.44, 119,044.80 and 69,780.15

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Solution

The fourth proportional to 79,264.44, 119,044.80 and 69,780.15 is: 104,800.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.44 : 119,044.80 = 69,780.15 : x
  2. Step 2: Convert to fraction form
    79,264.44/119,044.80 = 69,780.15/x
  3. Step 3: Cross multiply
    79,264.44x = 119,044.80 × 69,780.15
  4. Step 4: Simplify right side
    79,264.44x = 8,306,964,000.72
  5. Step 5: Solve for x
    x = 8,306,964,000.72/79,264.44
  6. Step 6: Final answer
    x = 104,800.64

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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.