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Finding the Fourth Proportional to 268,893.87, 403,340.84 and 88,931.00

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Solution

The fourth proportional to 268,893.87, 403,340.84 and 88,931.00 is: 133,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,893.87 : 403,340.84 = 88,931.00 : x
  2. Step 2: Convert to fraction form
    268,893.87/403,340.84 = 88,931.00/x
  3. Step 3: Cross multiply
    268,893.87x = 403,340.84 × 88,931.00
  4. Step 4: Simplify right side
    268,893.87x = 35,869,503,120.55
  5. Step 5: Solve for x
    x = 35,869,503,120.55/268,893.87
  6. Step 6: Final answer
    x = 133,396.51

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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.