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Finding the Fourth Proportional to 139,444.76, 209,172.06 and 44,662.62

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Solution

The fourth proportional to 139,444.76, 209,172.06 and 44,662.62 is: 66,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,444.76 : 209,172.06 = 44,662.62 : x
  2. Step 2: Convert to fraction form
    139,444.76/209,172.06 = 44,662.62/x
  3. Step 3: Cross multiply
    139,444.76x = 209,172.06 × 44,662.62
  4. Step 4: Simplify right side
    139,444.76x = 9,342,172,230.40
  5. Step 5: Solve for x
    x = 9,342,172,230.40/139,444.76
  6. Step 6: Final answer
    x = 66,995.51

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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.