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Finding the Fourth Proportional to 79,315.96, 118,949.64 and 26,711.32

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Solution

The fourth proportional to 79,315.96, 118,949.64 and 26,711.32 is: 40,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.96 : 118,949.64 = 26,711.32 : x
  2. Step 2: Convert to fraction form
    79,315.96/118,949.64 = 26,711.32/x
  3. Step 3: Cross multiply
    79,315.96x = 118,949.64 × 26,711.32
  4. Step 4: Simplify right side
    79,315.96x = 3,177,301,897.92
  5. Step 5: Solve for x
    x = 3,177,301,897.92/79,315.96
  6. Step 6: Final answer
    x = 40,058.80

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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.