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Finding the Fourth Proportional to 117,230.78, 161,777.19 and 63,512.59

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Solution

The fourth proportional to 117,230.78, 161,777.19 and 63,512.59 is: 87,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,230.78 : 161,777.19 = 63,512.59 : x
  2. Step 2: Convert to fraction form
    117,230.78/161,777.19 = 63,512.59/x
  3. Step 3: Cross multiply
    117,230.78x = 161,777.19 × 63,512.59
  4. Step 4: Simplify right side
    117,230.78x = 10,274,888,339.82
  5. Step 5: Solve for x
    x = 10,274,888,339.82/117,230.78
  6. Step 6: Final answer
    x = 87,646.68

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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.