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Finding the Fourth Proportional to 79,788.62, 119,656.58 and 26,468.34

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Solution

The fourth proportional to 79,788.62, 119,656.58 and 26,468.34 is: 39,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.62 : 119,656.58 = 26,468.34 : x
  2. Step 2: Convert to fraction form
    79,788.62/119,656.58 = 26,468.34/x
  3. Step 3: Cross multiply
    79,788.62x = 119,656.58 × 26,468.34
  4. Step 4: Simplify right side
    79,788.62x = 3,167,111,042.68
  5. Step 5: Solve for x
    x = 3,167,111,042.68/79,788.62
  6. Step 6: Final answer
    x = 39,693.77

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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.