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Finding the Fourth Proportional to 86,447.60, 119,179.32 and 54,600.56

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Solution

The fourth proportional to 86,447.60, 119,179.32 and 54,600.56 is: 75,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,447.60 : 119,179.32 = 54,600.56 : x
  2. Step 2: Convert to fraction form
    86,447.60/119,179.32 = 54,600.56/x
  3. Step 3: Cross multiply
    86,447.60x = 119,179.32 × 54,600.56
  4. Step 4: Simplify right side
    86,447.60x = 6,507,257,612.42
  5. Step 5: Solve for x
    x = 6,507,257,612.42/86,447.60
  6. Step 6: Final answer
    x = 75,274.01

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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.