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Finding the Fourth Proportional to 79,363.78, 119,044.12 and 19,392.65

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Solution

The fourth proportional to 79,363.78, 119,044.12 and 19,392.65 is: 29,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,363.78 : 119,044.12 = 19,392.65 : x
  2. Step 2: Convert to fraction form
    79,363.78/119,044.12 = 19,392.65/x
  3. Step 3: Cross multiply
    79,363.78x = 119,044.12 × 19,392.65
  4. Step 4: Simplify right side
    79,363.78x = 2,308,580,953.72
  5. Step 5: Solve for x
    x = 2,308,580,953.72/79,363.78
  6. Step 6: Final answer
    x = 29,088.60

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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.