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Finding the Fourth Proportional to 139,274.34, 208,909.13 and 44,503.83

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Solution

The fourth proportional to 139,274.34, 208,909.13 and 44,503.83 is: 66,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,274.34 : 208,909.13 = 44,503.83 : x
  2. Step 2: Convert to fraction form
    139,274.34/208,909.13 = 44,503.83/x
  3. Step 3: Cross multiply
    139,274.34x = 208,909.13 × 44,503.83
  4. Step 4: Simplify right side
    139,274.34x = 9,297,256,184.45
  5. Step 5: Solve for x
    x = 9,297,256,184.45/139,274.34
  6. Step 6: Final answer
    x = 66,754.98

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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.