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Finding the Fourth Proportional to 203,327.68, 280,592.20 and 112,697.27

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Solution

The fourth proportional to 203,327.68, 280,592.20 and 112,697.27 is: 155,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,327.68 : 280,592.20 = 112,697.27 : x
  2. Step 2: Convert to fraction form
    203,327.68/280,592.20 = 112,697.27/x
  3. Step 3: Cross multiply
    203,327.68x = 280,592.20 × 112,697.27
  4. Step 4: Simplify right side
    203,327.68x = 31,621,973,238.59
  5. Step 5: Solve for x
    x = 31,621,973,238.59/203,327.68
  6. Step 6: Final answer
    x = 155,522.23

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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.