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Finding the Fourth Proportional to 79,339.95, 109,488.47 and 43,041.29

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Solution

The fourth proportional to 79,339.95, 109,488.47 and 43,041.29 is: 59,396.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,339.95 : 109,488.47 = 43,041.29 : x
  2. Step 2: Convert to fraction form
    79,339.95/109,488.47 = 43,041.29/x
  3. Step 3: Cross multiply
    79,339.95x = 109,488.47 × 43,041.29
  4. Step 4: Simplify right side
    79,339.95x = 4,712,524,226.28
  5. Step 5: Solve for x
    x = 4,712,524,226.28/79,339.95
  6. Step 6: Final answer
    x = 59,396.61

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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.