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Finding the Fourth Proportional to 267,066.11, 400,503.18 and 77,486.93

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Solution

The fourth proportional to 267,066.11, 400,503.18 and 77,486.93 is: 116,202.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,066.11 : 400,503.18 = 77,486.93 : x
  2. Step 2: Convert to fraction form
    267,066.11/400,503.18 = 77,486.93/x
  3. Step 3: Cross multiply
    267,066.11x = 400,503.18 × 77,486.93
  4. Step 4: Simplify right side
    267,066.11x = 31,033,761,663.38
  5. Step 5: Solve for x
    x = 31,033,761,663.38/267,066.11
  6. Step 6: Final answer
    x = 116,202.54

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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.