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Finding the Fourth Proportional to 267,416.97, 401,128.70 and 89,923.29

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Solution

The fourth proportional to 267,416.97, 401,128.70 and 89,923.29 is: 134,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,416.97 : 401,128.70 = 89,923.29 : x
  2. Step 2: Convert to fraction form
    267,416.97/401,128.70 = 89,923.29/x
  3. Step 3: Cross multiply
    267,416.97x = 401,128.70 × 89,923.29
  4. Step 4: Simplify right side
    267,416.97x = 36,070,811,967.81
  5. Step 5: Solve for x
    x = 36,070,811,967.81/267,416.97
  6. Step 6: Final answer
    x = 134,886.02

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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.