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Finding the Fourth Proportional to 134,424.71, 201,761.69 and 67,911.67

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Solution

The fourth proportional to 134,424.71, 201,761.69 and 67,911.67 is: 101,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,424.71 : 201,761.69 = 67,911.67 : x
  2. Step 2: Convert to fraction form
    134,424.71/201,761.69 = 67,911.67/x
  3. Step 3: Cross multiply
    134,424.71x = 201,761.69 × 67,911.67
  4. Step 4: Simplify right side
    134,424.71x = 13,701,972,087.66
  5. Step 5: Solve for x
    x = 13,701,972,087.66/134,424.71
  6. Step 6: Final answer
    x = 101,930.45

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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.