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Finding the Fourth Proportional to 117,498.28, 162,147.60 and 67,197.28

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Solution

The fourth proportional to 117,498.28, 162,147.60 and 67,197.28 is: 92,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,498.28 : 162,147.60 = 67,197.28 : x
  2. Step 2: Convert to fraction form
    117,498.28/162,147.60 = 67,197.28/x
  3. Step 3: Cross multiply
    117,498.28x = 162,147.60 × 67,197.28
  4. Step 4: Simplify right side
    117,498.28x = 10,895,877,678.53
  5. Step 5: Solve for x
    x = 10,895,877,678.53/117,498.28
  6. Step 6: Final answer
    x = 92,732.23

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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.