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Finding the Fourth Proportional to 117,842.92, 162,621.54 and 64,850.92

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Solution

The fourth proportional to 117,842.92, 162,621.54 and 64,850.92 is: 89,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,842.92 : 162,621.54 = 64,850.92 : x
  2. Step 2: Convert to fraction form
    117,842.92/162,621.54 = 64,850.92/x
  3. Step 3: Cross multiply
    117,842.92x = 162,621.54 × 64,850.92
  4. Step 4: Simplify right side
    117,842.92x = 10,546,156,480.82
  5. Step 5: Solve for x
    x = 10,546,156,480.82/117,842.92
  6. Step 6: Final answer
    x = 89,493.34

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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.