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Finding the Fourth Proportional to 117,016.96, 161,482.92 and 63,301.85

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Solution

The fourth proportional to 117,016.96, 161,482.92 and 63,301.85 is: 87,356.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,016.96 : 161,482.92 = 63,301.85 : x
  2. Step 2: Convert to fraction form
    117,016.96/161,482.92 = 63,301.85/x
  3. Step 3: Cross multiply
    117,016.96x = 161,482.92 × 63,301.85
  4. Step 4: Simplify right side
    117,016.96x = 10,222,167,579.40
  5. Step 5: Solve for x
    x = 10,222,167,579.40/117,016.96
  6. Step 6: Final answer
    x = 87,356.29

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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.