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Finding the Fourth Proportional to 117,673.03, 162,388.02 and 67,381.75

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Solution

The fourth proportional to 117,673.03, 162,388.02 and 67,381.75 is: 92,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,673.03 : 162,388.02 = 67,381.75 : x
  2. Step 2: Convert to fraction form
    117,673.03/162,388.02 = 67,381.75/x
  3. Step 3: Cross multiply
    117,673.03x = 162,388.02 × 67,381.75
  4. Step 4: Simplify right side
    117,673.03x = 10,941,988,966.64
  5. Step 5: Solve for x
    x = 10,941,988,966.64/117,673.03
  6. Step 6: Final answer
    x = 92,986.38

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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.