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Finding the Fourth Proportional to 211,679.70, 292,116.96 and 116,188.02

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Solution

The fourth proportional to 211,679.70, 292,116.96 and 116,188.02 is: 160,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,679.70 : 292,116.96 = 116,188.02 : x
  2. Step 2: Convert to fraction form
    211,679.70/292,116.96 = 116,188.02/x
  3. Step 3: Cross multiply
    211,679.70x = 292,116.96 × 116,188.02
  4. Step 4: Simplify right side
    211,679.70x = 33,940,491,190.82
  5. Step 5: Solve for x
    x = 33,940,491,190.82/211,679.70
  6. Step 6: Final answer
    x = 160,338.90

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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.