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Finding the Fourth Proportional to 79,294.76, 109,426.92 and 43,485.02

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Solution

The fourth proportional to 79,294.76, 109,426.92 and 43,485.02 is: 60,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,294.76 : 109,426.92 = 43,485.02 : x
  2. Step 2: Convert to fraction form
    79,294.76/109,426.92 = 43,485.02/x
  3. Step 3: Cross multiply
    79,294.76x = 109,426.92 × 43,485.02
  4. Step 4: Simplify right side
    79,294.76x = 4,758,431,804.74
  5. Step 5: Solve for x
    x = 4,758,431,804.74/79,294.76
  6. Step 6: Final answer
    x = 60,009.41

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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.