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Finding the Fourth Proportional to 121,476.71, 167,631.12 and 67,027.10

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Solution

The fourth proportional to 121,476.71, 167,631.12 and 67,027.10 is: 92,493.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,476.71 : 167,631.12 = 67,027.10 : x
  2. Step 2: Convert to fraction form
    121,476.71/167,631.12 = 67,027.10/x
  3. Step 3: Cross multiply
    121,476.71x = 167,631.12 × 67,027.10
  4. Step 4: Simplify right side
    121,476.71x = 11,235,827,005.20
  5. Step 5: Solve for x
    x = 11,235,827,005.20/121,476.71
  6. Step 6: Final answer
    x = 92,493.67

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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.