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Finding the Fourth Proportional to 139,260.82, 208,925.16 and 44,490.88

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Solution

The fourth proportional to 139,260.82, 208,925.16 and 44,490.88 is: 66,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,260.82 : 208,925.16 = 44,490.88 : x
  2. Step 2: Convert to fraction form
    139,260.82/208,925.16 = 44,490.88/x
  3. Step 3: Cross multiply
    139,260.82x = 208,925.16 × 44,490.88
  4. Step 4: Simplify right side
    139,260.82x = 9,295,264,222.54
  5. Step 5: Solve for x
    x = 9,295,264,222.54/139,260.82
  6. Step 6: Final answer
    x = 66,747.16

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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.