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Finding the Fourth Proportional to 139,237.98, 208,576.03 and 64,253.94

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Solution

The fourth proportional to 139,237.98, 208,576.03 and 64,253.94 is: 96,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,237.98 : 208,576.03 = 64,253.94 : x
  2. Step 2: Convert to fraction form
    139,237.98/208,576.03 = 64,253.94/x
  3. Step 3: Cross multiply
    139,237.98x = 208,576.03 × 64,253.94
  4. Step 4: Simplify right side
    139,237.98x = 13,401,831,717.06
  5. Step 5: Solve for x
    x = 13,401,831,717.06/139,237.98
  6. Step 6: Final answer
    x = 96,251.27

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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.