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Finding the Fourth Proportional to 267,705.66, 401,536.62 and 90,208.74

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Solution

The fourth proportional to 267,705.66, 401,536.62 and 90,208.74 is: 135,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,705.66 : 401,536.62 = 90,208.74 : x
  2. Step 2: Convert to fraction form
    267,705.66/401,536.62 = 90,208.74/x
  3. Step 3: Cross multiply
    267,705.66x = 401,536.62 × 90,208.74
  4. Step 4: Simplify right side
    267,705.66x = 36,222,112,554.06
  5. Step 5: Solve for x
    x = 36,222,112,554.06/267,705.66
  6. Step 6: Final answer
    x = 135,305.74

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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.