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Finding the Fourth Proportional to 485,093.76, 726,297.12 and 247,925.76

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Solution

The fourth proportional to 485,093.76, 726,297.12 and 247,925.76 is: 371,201.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,093.76 : 726,297.12 = 247,925.76 : x
  2. Step 2: Convert to fraction form
    485,093.76/726,297.12 = 247,925.76/x
  3. Step 3: Cross multiply
    485,093.76x = 726,297.12 × 247,925.76
  4. Step 4: Simplify right side
    485,093.76x = 180,067,765,461.81
  5. Step 5: Solve for x
    x = 180,067,765,461.81/485,093.76
  6. Step 6: Final answer
    x = 371,201.98

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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.