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Finding the Fourth Proportional to 207,367.56, 310,986.54 and 67,097.16

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Solution

The fourth proportional to 207,367.56, 310,986.54 and 67,097.16 is: 100,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,367.56 : 310,986.54 = 67,097.16 : x
  2. Step 2: Convert to fraction form
    207,367.56/310,986.54 = 67,097.16/x
  3. Step 3: Cross multiply
    207,367.56x = 310,986.54 × 67,097.16
  4. Step 4: Simplify right side
    207,367.56x = 20,866,313,632.23
  5. Step 5: Solve for x
    x = 20,866,313,632.23/207,367.56
  6. Step 6: Final answer
    x = 100,624.77

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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.