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Finding the Fourth Proportional to 79,673.32, 109,948.38 and 43,862.38

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Solution

The fourth proportional to 79,673.32, 109,948.38 and 43,862.38 is: 60,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,673.32 : 109,948.38 = 43,862.38 : x
  2. Step 2: Convert to fraction form
    79,673.32/109,948.38 = 43,862.38/x
  3. Step 3: Cross multiply
    79,673.32x = 109,948.38 × 43,862.38
  4. Step 4: Simplify right side
    79,673.32x = 4,822,597,623.94
  5. Step 5: Solve for x
    x = 4,822,597,623.94/79,673.32
  6. Step 6: Final answer
    x = 60,529.64

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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.