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Finding the Fourth Proportional to 207,574.25, 311,361.39 and 67,332.89

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Solution

The fourth proportional to 207,574.25, 311,361.39 and 67,332.89 is: 100,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,574.25 : 311,361.39 = 67,332.89 : x
  2. Step 2: Convert to fraction form
    207,574.25/311,361.39 = 67,332.89/x
  3. Step 3: Cross multiply
    207,574.25x = 311,361.39 × 67,332.89
  4. Step 4: Simplify right side
    207,574.25x = 20,964,862,223.12
  5. Step 5: Solve for x
    x = 20,964,862,223.12/207,574.25
  6. Step 6: Final answer
    x = 100,999.34

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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.