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Finding the Fourth Proportional to 79,132.92, 109,206 and 43,325.52

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Solution

The fourth proportional to 79,132.92, 109,206 and 43,325.52 is: 59,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,132.92 : 109,206 = 43,325.52 : x
  2. Step 2: Convert to fraction form
    79,132.92/109,206 = 43,325.52/x
  3. Step 3: Cross multiply
    79,132.92x = 109,206 × 43,325.52
  4. Step 4: Simplify right side
    79,132.92x = 4,731,406,737.12
  5. Step 5: Solve for x
    x = 4,731,406,737.12/79,132.92
  6. Step 6: Final answer
    x = 59,790.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.