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Finding the Fourth Proportional to 1,238,093.10, 1,857,139.65 and 1,238,093.10

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Solution

The fourth proportional to 1,238,093.10, 1,857,139.65 and 1,238,093.10 is: 1,857,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,093.10 : 1,857,139.65 = 1,238,093.10 : x
  2. Step 2: Convert to fraction form
    1,238,093.10/1,857,139.65 = 1,238,093.10/x
  3. Step 3: Cross multiply
    1,238,093.10x = 1,857,139.65 × 1,238,093.10
  4. Step 4: Simplify right side
    1,238,093.10x = 2,299,311,786,401.42
  5. Step 5: Solve for x
    x = 2,299,311,786,401.42/1,238,093.10
  6. Step 6: Final answer
    x = 1,857,139.65

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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.