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Finding the Fourth Proportional to 117,197.01, 161,731.93 and 63,481.86

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Solution

The fourth proportional to 117,197.01, 161,731.93 and 63,481.86 is: 87,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,197.01 : 161,731.93 = 63,481.86 : x
  2. Step 2: Convert to fraction form
    117,197.01/161,731.93 = 63,481.86/x
  3. Step 3: Cross multiply
    117,197.01x = 161,731.93 × 63,481.86
  4. Step 4: Simplify right side
    117,197.01x = 10,267,043,737.79
  5. Step 5: Solve for x
    x = 10,267,043,737.79/117,197.01
  6. Step 6: Final answer
    x = 87,605.00

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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.