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Finding the Fourth Proportional to 117,469.83, 162,108.47 and 63,754.84

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Solution

The fourth proportional to 117,469.83, 162,108.47 and 63,754.84 is: 87,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,469.83 : 162,108.47 = 63,754.84 : x
  2. Step 2: Convert to fraction form
    117,469.83/162,108.47 = 63,754.84/x
  3. Step 3: Cross multiply
    117,469.83x = 162,108.47 × 63,754.84
  4. Step 4: Simplify right side
    117,469.83x = 10,335,199,567.49
  5. Step 5: Solve for x
    x = 10,335,199,567.49/117,469.83
  6. Step 6: Final answer
    x = 87,981.74

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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.