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Finding the Fourth Proportional to 267,362.64, 401,036.40 and 89,879.76

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Solution

The fourth proportional to 267,362.64, 401,036.40 and 89,879.76 is: 134,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,362.64 : 401,036.40 = 89,879.76 : x
  2. Step 2: Convert to fraction form
    267,362.64/401,036.40 = 89,879.76/x
  3. Step 3: Cross multiply
    267,362.64x = 401,036.40 × 89,879.76
  4. Step 4: Simplify right side
    267,362.64x = 36,045,055,383.26
  5. Step 5: Solve for x
    x = 36,045,055,383.26/267,362.64
  6. Step 6: Final answer
    x = 134,817.10

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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.