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Finding the Fourth Proportional to 139,713.66, 209,585.49 and 59,759.94

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Solution

The fourth proportional to 139,713.66, 209,585.49 and 59,759.94 is: 89,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,713.66 : 209,585.49 = 59,759.94 : x
  2. Step 2: Convert to fraction form
    139,713.66/209,585.49 = 59,759.94/x
  3. Step 3: Cross multiply
    139,713.66x = 209,585.49 × 59,759.94
  4. Step 4: Simplify right side
    139,713.66x = 12,524,816,307.27
  5. Step 5: Solve for x
    x = 12,524,816,307.27/139,713.66
  6. Step 6: Final answer
    x = 89,646.33

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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.