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Finding the Fourth Proportional to 59,139.70, 88,723.74 and 19,697.17

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Solution

The fourth proportional to 59,139.70, 88,723.74 and 19,697.17 is: 29,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,139.70 : 88,723.74 = 19,697.17 : x
  2. Step 2: Convert to fraction form
    59,139.70/88,723.74 = 19,697.17/x
  3. Step 3: Cross multiply
    59,139.70x = 88,723.74 × 19,697.17
  4. Step 4: Simplify right side
    59,139.70x = 1,747,606,589.82
  5. Step 5: Solve for x
    x = 1,747,606,589.82/59,139.70
  6. Step 6: Final answer
    x = 29,550.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.