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Finding the Fourth Proportional to 265,872.17, 366,907.97 and 145,013.46

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Solution

The fourth proportional to 265,872.17, 366,907.97 and 145,013.46 is: 200,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,872.17 : 366,907.97 = 145,013.46 : x
  2. Step 2: Convert to fraction form
    265,872.17/366,907.97 = 145,013.46/x
  3. Step 3: Cross multiply
    265,872.17x = 366,907.97 × 145,013.46
  4. Step 4: Simplify right side
    265,872.17x = 53,206,593,506.21
  5. Step 5: Solve for x
    x = 53,206,593,506.21/265,872.17
  6. Step 6: Final answer
    x = 200,120.96

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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.