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Finding the Fourth Proportional to 139,687.65, 209,551.11 and 44,886.06

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Solution

The fourth proportional to 139,687.65, 209,551.11 and 44,886.06 is: 67,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,687.65 : 209,551.11 = 44,886.06 : x
  2. Step 2: Convert to fraction form
    139,687.65/209,551.11 = 44,886.06/x
  3. Step 3: Cross multiply
    139,687.65x = 209,551.11 × 44,886.06
  4. Step 4: Simplify right side
    139,687.65x = 9,405,923,696.53
  5. Step 5: Solve for x
    x = 9,405,923,696.53/139,687.65
  6. Step 6: Final answer
    x = 67,335.40

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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.