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Finding the Fourth Proportional to 245,314.60, 368,015.64 and 67,817.68

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Solution

The fourth proportional to 245,314.60, 368,015.64 and 67,817.68 is: 101,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,314.60 : 368,015.64 = 67,817.68 : x
  2. Step 2: Convert to fraction form
    245,314.60/368,015.64 = 67,817.68/x
  3. Step 3: Cross multiply
    245,314.60x = 368,015.64 × 67,817.68
  4. Step 4: Simplify right side
    245,314.60x = 24,957,966,908.52
  5. Step 5: Solve for x
    x = 24,957,966,908.52/245,314.60
  6. Step 6: Final answer
    x = 101,738.61

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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.