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Finding the Fourth Proportional to 207,107.88, 310,665.59 and 64,949.97

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Solution

The fourth proportional to 207,107.88, 310,665.59 and 64,949.97 is: 97,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,107.88 : 310,665.59 = 64,949.97 : x
  2. Step 2: Convert to fraction form
    207,107.88/310,665.59 = 64,949.97/x
  3. Step 3: Cross multiply
    207,107.88x = 310,665.59 × 64,949.97
  4. Step 4: Simplify right side
    207,107.88x = 20,177,720,750.53
  5. Step 5: Solve for x
    x = 20,177,720,750.53/207,107.88
  6. Step 6: Final answer
    x = 97,426.14

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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.