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Finding the Fourth Proportional to 202,690.38, 304,041.75 and 69,568.74

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Solution

The fourth proportional to 202,690.38, 304,041.75 and 69,568.74 is: 104,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,690.38 : 304,041.75 = 69,568.74 : x
  2. Step 2: Convert to fraction form
    202,690.38/304,041.75 = 69,568.74/x
  3. Step 3: Cross multiply
    202,690.38x = 304,041.75 × 69,568.74
  4. Step 4: Simplify right side
    202,690.38x = 21,151,801,454.90
  5. Step 5: Solve for x
    x = 21,151,801,454.90/202,690.38
  6. Step 6: Final answer
    x = 104,355.23

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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.