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Finding the Fourth Proportional to 363,061.10, 501,017.19 and 201,912.68

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Solution

The fourth proportional to 363,061.10, 501,017.19 and 201,912.68 is: 278,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,061.10 : 501,017.19 = 201,912.68 : x
  2. Step 2: Convert to fraction form
    363,061.10/501,017.19 = 201,912.68/x
  3. Step 3: Cross multiply
    363,061.10x = 501,017.19 × 201,912.68
  4. Step 4: Simplify right side
    363,061.10x = 101,161,724,054.34
  5. Step 5: Solve for x
    x = 101,161,724,054.34/363,061.10
  6. Step 6: Final answer
    x = 278,635.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.