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Finding the Fourth Proportional to 117,364.32, 161,961.66 and 63,650.52

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Solution

The fourth proportional to 117,364.32, 161,961.66 and 63,650.52 is: 87,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,364.32 : 161,961.66 = 63,650.52 : x
  2. Step 2: Convert to fraction form
    117,364.32/161,961.66 = 63,650.52/x
  3. Step 3: Cross multiply
    117,364.32x = 161,961.66 × 63,650.52
  4. Step 4: Simplify right side
    117,364.32x = 10,308,943,879.06
  5. Step 5: Solve for x
    x = 10,308,943,879.06/117,364.32
  6. Step 6: Final answer
    x = 87,837.12

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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.