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Finding the Fourth Proportional to 79,646.02, 109,907.31 and 43,829.10

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Solution

The fourth proportional to 79,646.02, 109,907.31 and 43,829.10 is: 60,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,646.02 : 109,907.31 = 43,829.10 : x
  2. Step 2: Convert to fraction form
    79,646.02/109,907.31 = 43,829.10/x
  3. Step 3: Cross multiply
    79,646.02x = 109,907.31 × 43,829.10
  4. Step 4: Simplify right side
    79,646.02x = 4,817,138,645.08
  5. Step 5: Solve for x
    x = 4,817,138,645.08/79,646.02
  6. Step 6: Final answer
    x = 60,481.85

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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.