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Finding the Fourth Proportional to 203,193.93, 280,423.41 and 112,558.32

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Solution

The fourth proportional to 203,193.93, 280,423.41 and 112,558.32 is: 155,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,193.93 : 280,423.41 = 112,558.32 : x
  2. Step 2: Convert to fraction form
    203,193.93/280,423.41 = 112,558.32/x
  3. Step 3: Cross multiply
    203,193.93x = 280,423.41 × 112,558.32
  4. Step 4: Simplify right side
    203,193.93x = 31,563,987,918.27
  5. Step 5: Solve for x
    x = 31,563,987,918.27/203,193.93
  6. Step 6: Final answer
    x = 155,339.23

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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.