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Finding the Fourth Proportional to 267,562.84, 401,406.06 and 90,065.32

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Solution

The fourth proportional to 267,562.84, 401,406.06 and 90,065.32 is: 135,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,562.84 : 401,406.06 = 90,065.32 : x
  2. Step 2: Convert to fraction form
    267,562.84/401,406.06 = 90,065.32/x
  3. Step 3: Cross multiply
    267,562.84x = 401,406.06 × 90,065.32
  4. Step 4: Simplify right side
    267,562.84x = 36,152,765,243.84
  5. Step 5: Solve for x
    x = 36,152,765,243.84/267,562.84
  6. Step 6: Final answer
    x = 135,118.78

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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.