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Finding the Fourth Proportional to 116,612.64, 161,015.85 and 91,074.42

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Solution

The fourth proportional to 116,612.64, 161,015.85 and 91,074.42 is: 125,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,612.64 : 161,015.85 = 91,074.42 : x
  2. Step 2: Convert to fraction form
    116,612.64/161,015.85 = 91,074.42/x
  3. Step 3: Cross multiply
    116,612.64x = 161,015.85 × 91,074.42
  4. Step 4: Simplify right side
    116,612.64x = 14,664,425,149.56
  5. Step 5: Solve for x
    x = 14,664,425,149.56/116,612.64
  6. Step 6: Final answer
    x = 125,753.31

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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.