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Finding the Fourth Proportional to 267,399.87, 368,951.94 and 152,641.86

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Solution

The fourth proportional to 267,399.87, 368,951.94 and 152,641.86 is: 210,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,399.87 : 368,951.94 = 152,641.86 : x
  2. Step 2: Convert to fraction form
    267,399.87/368,951.94 = 152,641.86/x
  3. Step 3: Cross multiply
    267,399.87x = 368,951.94 × 152,641.86
  4. Step 4: Simplify right side
    267,399.87x = 56,317,510,372.21
  5. Step 5: Solve for x
    x = 56,317,510,372.21/267,399.87
  6. Step 6: Final answer
    x = 210,611.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.