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Finding the Fourth Proportional to 79,054.92, 109,097.40 and 43,247.28

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Solution

The fourth proportional to 79,054.92, 109,097.40 and 43,247.28 is: 59,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,054.92 : 109,097.40 = 43,247.28 : x
  2. Step 2: Convert to fraction form
    79,054.92/109,097.40 = 43,247.28/x
  3. Step 3: Cross multiply
    79,054.92x = 109,097.40 × 43,247.28
  4. Step 4: Simplify right side
    79,054.92x = 4,718,165,805.07
  5. Step 5: Solve for x
    x = 4,718,165,805.07/79,054.92
  6. Step 6: Final answer
    x = 59,682.13

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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.