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Finding the Fourth Proportional to 73,125.60, 109,639.80 and 33,662.40

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Solution

The fourth proportional to 73,125.60, 109,639.80 and 33,662.40 is: 50,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,125.60 : 109,639.80 = 33,662.40 : x
  2. Step 2: Convert to fraction form
    73,125.60/109,639.80 = 33,662.40/x
  3. Step 3: Cross multiply
    73,125.60x = 109,639.80 × 33,662.40
  4. Step 4: Simplify right side
    73,125.60x = 3,690,738,803.52
  5. Step 5: Solve for x
    x = 3,690,738,803.52/73,125.60
  6. Step 6: Final answer
    x = 50,471.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.