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Finding the Fourth Proportional to 341,806.38, 512,750.61 and 142,261.26

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Solution

The fourth proportional to 341,806.38, 512,750.61 and 142,261.26 is: 213,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,806.38 : 512,750.61 = 142,261.26 : x
  2. Step 2: Convert to fraction form
    341,806.38/512,750.61 = 142,261.26/x
  3. Step 3: Cross multiply
    341,806.38x = 512,750.61 × 142,261.26
  4. Step 4: Simplify right side
    341,806.38x = 72,944,547,844.37
  5. Step 5: Solve for x
    x = 72,944,547,844.37/341,806.38
  6. Step 6: Final answer
    x = 213,408.97

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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.