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Finding the Fourth Proportional to 59,019.52, 81,418.08 and 35,138.56

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Solution

The fourth proportional to 59,019.52, 81,418.08 and 35,138.56 is: 48,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,019.52 : 81,418.08 = 35,138.56 : x
  2. Step 2: Convert to fraction form
    59,019.52/81,418.08 = 35,138.56/x
  3. Step 3: Cross multiply
    59,019.52x = 81,418.08 × 35,138.56
  4. Step 4: Simplify right side
    59,019.52x = 2,860,914,089.16
  5. Step 5: Solve for x
    x = 2,860,914,089.16/59,019.52
  6. Step 6: Final answer
    x = 48,474.03

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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.