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Finding the Fourth Proportional to 139,322.69, 208,956.82 and 44,527.44

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Solution

The fourth proportional to 139,322.69, 208,956.82 and 44,527.44 is: 66,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,322.69 : 208,956.82 = 44,527.44 : x
  2. Step 2: Convert to fraction form
    139,322.69/208,956.82 = 44,527.44/x
  3. Step 3: Cross multiply
    139,322.69x = 208,956.82 × 44,527.44
  4. Step 4: Simplify right side
    139,322.69x = 9,304,312,042.50
  5. Step 5: Solve for x
    x = 9,304,312,042.50/139,322.69
  6. Step 6: Final answer
    x = 66,782.46

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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.