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Finding the Fourth Proportional to 79,070.53, 109,119.95 and 43,260.56

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Solution

The fourth proportional to 79,070.53, 109,119.95 and 43,260.56 is: 59,701.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,070.53 : 109,119.95 = 43,260.56 : x
  2. Step 2: Convert to fraction form
    79,070.53/109,119.95 = 43,260.56/x
  3. Step 3: Cross multiply
    79,070.53x = 109,119.95 × 43,260.56
  4. Step 4: Simplify right side
    79,070.53x = 4,720,589,382.27
  5. Step 5: Solve for x
    x = 4,720,589,382.27/79,070.53
  6. Step 6: Final answer
    x = 59,701.00

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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.