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Finding the Fourth Proportional to 116,773.72, 161,159.64 and 71,481.63

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Solution

The fourth proportional to 116,773.72, 161,159.64 and 71,481.63 is: 98,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,773.72 : 161,159.64 = 71,481.63 : x
  2. Step 2: Convert to fraction form
    116,773.72/161,159.64 = 71,481.63/x
  3. Step 3: Cross multiply
    116,773.72x = 161,159.64 × 71,481.63
  4. Step 4: Simplify right side
    116,773.72x = 11,519,953,757.41
  5. Step 5: Solve for x
    x = 11,519,953,757.41/116,773.72
  6. Step 6: Final answer
    x = 98,651.94

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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.