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Finding the Fourth Proportional to 79,062.92, 109,109.43 and 43,252.11

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Solution

The fourth proportional to 79,062.92, 109,109.43 and 43,252.11 is: 59,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,062.92 : 109,109.43 = 43,252.11 : x
  2. Step 2: Convert to fraction form
    79,062.92/109,109.43 = 43,252.11/x
  3. Step 3: Cross multiply
    79,062.92x = 109,109.43 × 43,252.11
  4. Step 4: Simplify right side
    79,062.92x = 4,719,213,068.40
  5. Step 5: Solve for x
    x = 4,719,213,068.40/79,062.92
  6. Step 6: Final answer
    x = 59,689.34

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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.