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Finding the Fourth Proportional to 250,824.55, 376,235.80 and 90,863.06

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Solution

The fourth proportional to 250,824.55, 376,235.80 and 90,863.06 is: 136,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,824.55 : 376,235.80 = 90,863.06 : x
  2. Step 2: Convert to fraction form
    250,824.55/376,235.80 = 90,863.06/x
  3. Step 3: Cross multiply
    250,824.55x = 376,235.80 × 90,863.06
  4. Step 4: Simplify right side
    250,824.55x = 34,185,936,069.55
  5. Step 5: Solve for x
    x = 34,185,936,069.55/250,824.55
  6. Step 6: Final answer
    x = 136,294.22

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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.