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Finding the Fourth Proportional to 207,252.40, 310,878.60 and 67,025.20

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Solution

The fourth proportional to 207,252.40, 310,878.60 and 67,025.20 is: 100,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,252.40 : 310,878.60 = 67,025.20 : x
  2. Step 2: Convert to fraction form
    207,252.40/310,878.60 = 67,025.20/x
  3. Step 3: Cross multiply
    207,252.40x = 310,878.60 × 67,025.20
  4. Step 4: Simplify right side
    207,252.40x = 20,836,700,340.72
  5. Step 5: Solve for x
    x = 20,836,700,340.72/207,252.40
  6. Step 6: Final answer
    x = 100,537.80

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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.