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Finding the Fourth Proportional to 202,805.52, 279,874.02 and 112,168.92

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Solution

The fourth proportional to 202,805.52, 279,874.02 and 112,168.92 is: 154,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,805.52 : 279,874.02 = 112,168.92 : x
  2. Step 2: Convert to fraction form
    202,805.52/279,874.02 = 112,168.92/x
  3. Step 3: Cross multiply
    202,805.52x = 279,874.02 × 112,168.92
  4. Step 4: Simplify right side
    202,805.52x = 31,393,166,559.46
  5. Step 5: Solve for x
    x = 31,393,166,559.46/202,805.52
  6. Step 6: Final answer
    x = 154,794.44

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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.