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Finding the Fourth Proportional to 202,142.40, 303,432.30 and 113,568.90

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Solution

The fourth proportional to 202,142.40, 303,432.30 and 113,568.90 is: 170,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,142.40 : 303,432.30 = 113,568.90 : x
  2. Step 2: Convert to fraction form
    202,142.40/303,432.30 = 113,568.90/x
  3. Step 3: Cross multiply
    202,142.40x = 303,432.30 × 113,568.90
  4. Step 4: Simplify right side
    202,142.40x = 34,460,472,535.47
  5. Step 5: Solve for x
    x = 34,460,472,535.47/202,142.40
  6. Step 6: Final answer
    x = 170,476.22

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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.