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Finding the Fourth Proportional to 117,212.86, 161,754.51 and 63,497.83

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Solution

The fourth proportional to 117,212.86, 161,754.51 and 63,497.83 is: 87,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.86 : 161,754.51 = 63,497.83 : x
  2. Step 2: Convert to fraction form
    117,212.86/161,754.51 = 63,497.83/x
  3. Step 3: Cross multiply
    117,212.86x = 161,754.51 × 63,497.83
  4. Step 4: Simplify right side
    117,212.86x = 10,271,060,377.71
  5. Step 5: Solve for x
    x = 10,271,060,377.71/117,212.86
  6. Step 6: Final answer
    x = 87,627.42

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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.