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Finding the Fourth Proportional to 207,271.40, 310,907.10 and 67,044.20

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Solution

The fourth proportional to 207,271.40, 310,907.10 and 67,044.20 is: 100,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,271.40 : 310,907.10 = 67,044.20 : x
  2. Step 2: Convert to fraction form
    207,271.40/310,907.10 = 67,044.20/x
  3. Step 3: Cross multiply
    207,271.40x = 310,907.10 × 67,044.20
  4. Step 4: Simplify right side
    207,271.40x = 20,844,517,793.82
  5. Step 5: Solve for x
    x = 20,844,517,793.82/207,271.40
  6. Step 6: Final answer
    x = 100,566.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.