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Finding the Fourth Proportional to 221,345.60, 331,975.20 and 73,601.60

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Solution

The fourth proportional to 221,345.60, 331,975.20 and 73,601.60 is: 110,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,345.60 : 331,975.20 = 73,601.60 : x
  2. Step 2: Convert to fraction form
    221,345.60/331,975.20 = 73,601.60/x
  3. Step 3: Cross multiply
    221,345.60x = 331,975.20 × 73,601.60
  4. Step 4: Simplify right side
    221,345.60x = 24,433,905,880.32
  5. Step 5: Solve for x
    x = 24,433,905,880.32/221,345.60
  6. Step 6: Final answer
    x = 110,388.04

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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.