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Finding the Fourth Proportional to 367,943.10, 550,602.45 and 255,093.90

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Solution

The fourth proportional to 367,943.10, 550,602.45 and 255,093.90 is: 381,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,943.10 : 550,602.45 = 255,093.90 : x
  2. Step 2: Convert to fraction form
    367,943.10/550,602.45 = 255,093.90/x
  3. Step 3: Cross multiply
    367,943.10x = 550,602.45 × 255,093.90
  4. Step 4: Simplify right side
    367,943.10x = 140,455,326,320.06
  5. Step 5: Solve for x
    x = 140,455,326,320.06/367,943.10
  6. Step 6: Final answer
    x = 381,731.11

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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.