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Finding the Fourth Proportional to 139,262.64, 208,891.64 and 44,492.16

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Solution

The fourth proportional to 139,262.64, 208,891.64 and 44,492.16 is: 66,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,262.64 : 208,891.64 = 44,492.16 : x
  2. Step 2: Convert to fraction form
    139,262.64/208,891.64 = 44,492.16/x
  3. Step 3: Cross multiply
    139,262.64x = 208,891.64 × 44,492.16
  4. Step 4: Simplify right side
    139,262.64x = 9,294,040,269.54
  5. Step 5: Solve for x
    x = 9,294,040,269.54/139,262.64
  6. Step 6: Final answer
    x = 66,737.50

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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.