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Finding the Fourth Proportional to 143,863.10, 201,145.90 and 143,863.10

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Solution

The fourth proportional to 143,863.10, 201,145.90 and 143,863.10 is: 201,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.10 : 201,145.90 = 143,863.10 : x
  2. Step 2: Convert to fraction form
    143,863.10/201,145.90 = 143,863.10/x
  3. Step 3: Cross multiply
    143,863.10x = 201,145.90 × 143,863.10
  4. Step 4: Simplify right side
    143,863.10x = 28,937,472,726.29
  5. Step 5: Solve for x
    x = 28,937,472,726.29/143,863.10
  6. Step 6: Final answer
    x = 201,145.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.