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Finding the Fourth Proportional to 117,166.64, 161,689.72 and 63,451.49

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Solution

The fourth proportional to 117,166.64, 161,689.72 and 63,451.49 is: 87,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,166.64 : 161,689.72 = 63,451.49 : x
  2. Step 2: Convert to fraction form
    117,166.64/161,689.72 = 63,451.49/x
  3. Step 3: Cross multiply
    117,166.64x = 161,689.72 × 63,451.49
  4. Step 4: Simplify right side
    117,166.64x = 10,259,453,651.68
  5. Step 5: Solve for x
    x = 10,259,453,651.68/117,166.64
  6. Step 6: Final answer
    x = 87,562.92

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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.