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Finding the Fourth Proportional to 119,759.68, 165,261.36 and 68,760.64

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Solution

The fourth proportional to 119,759.68, 165,261.36 and 68,760.64 is: 94,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,759.68 : 165,261.36 = 68,760.64 : x
  2. Step 2: Convert to fraction form
    119,759.68/165,261.36 = 68,760.64/x
  3. Step 3: Cross multiply
    119,759.68x = 165,261.36 × 68,760.64
  4. Step 4: Simplify right side
    119,759.68x = 11,363,476,880.87
  5. Step 5: Solve for x
    x = 11,363,476,880.87/119,759.68
  6. Step 6: Final answer
    x = 94,885.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.