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Finding the Fourth Proportional to 117,211.86, 161,753.13 and 63,496.83

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Solution

The fourth proportional to 117,211.86, 161,753.13 and 63,496.83 is: 87,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,211.86 : 161,753.13 = 63,496.83 : x
  2. Step 2: Convert to fraction form
    117,211.86/161,753.13 = 63,496.83/x
  3. Step 3: Cross multiply
    117,211.86x = 161,753.13 × 63,496.83
  4. Step 4: Simplify right side
    117,211.86x = 10,270,810,997.58
  5. Step 5: Solve for x
    x = 10,270,810,997.58/117,211.86
  6. Step 6: Final answer
    x = 87,626.04

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1.5x scale

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.