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Finding the Fourth Proportional to 117,114.64, 161,618.17 and 63,399.62

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Solution

The fourth proportional to 117,114.64, 161,618.17 and 63,399.62 is: 87,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,114.64 : 161,618.17 = 63,399.62 : x
  2. Step 2: Convert to fraction form
    117,114.64/161,618.17 = 63,399.62/x
  3. Step 3: Cross multiply
    117,114.64x = 161,618.17 × 63,399.62
  4. Step 4: Simplify right side
    117,114.64x = 10,246,530,740.43
  5. Step 5: Solve for x
    x = 10,246,530,740.43/117,114.64
  6. Step 6: Final answer
    x = 87,491.46

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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.