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Finding the Fourth Proportional to 192,993.68, 289,531.56 and 59,870.72

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Solution

The fourth proportional to 192,993.68, 289,531.56 and 59,870.72 is: 89,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,993.68 : 289,531.56 = 59,870.72 : x
  2. Step 2: Convert to fraction form
    192,993.68/289,531.56 = 59,870.72/x
  3. Step 3: Cross multiply
    192,993.68x = 289,531.56 × 59,870.72
  4. Step 4: Simplify right side
    192,993.68x = 17,334,462,959.92
  5. Step 5: Solve for x
    x = 17,334,462,959.92/192,993.68
  6. Step 6: Final answer
    x = 89,818.81

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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.