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Finding the Fourth Proportional to 139,717.77, 209,576.72 and 46,223.52

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Solution

The fourth proportional to 139,717.77, 209,576.72 and 46,223.52 is: 69,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,717.77 : 209,576.72 = 46,223.52 : x
  2. Step 2: Convert to fraction form
    139,717.77/209,576.72 = 46,223.52/x
  3. Step 3: Cross multiply
    139,717.77x = 209,576.72 × 46,223.52
  4. Step 4: Simplify right side
    139,717.77x = 9,687,373,708.45
  5. Step 5: Solve for x
    x = 9,687,373,708.45/139,717.77
  6. Step 6: Final answer
    x = 69,335.30

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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.