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Finding the Fourth Proportional to 202,995.32, 280,131.46 and 112,351.46

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Solution

The fourth proportional to 202,995.32, 280,131.46 and 112,351.46 is: 155,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,995.32 : 280,131.46 = 112,351.46 : x
  2. Step 2: Convert to fraction form
    202,995.32/280,131.46 = 112,351.46/x
  3. Step 3: Cross multiply
    202,995.32x = 280,131.46 × 112,351.46
  4. Step 4: Simplify right side
    202,995.32x = 31,473,178,522.93
  5. Step 5: Solve for x
    x = 31,473,178,522.93/202,995.32
  6. Step 6: Final answer
    x = 155,043.86

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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.