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Finding the Fourth Proportional to 267,702.36, 401,590.52 and 90,260.08

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Solution

The fourth proportional to 267,702.36, 401,590.52 and 90,260.08 is: 135,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,702.36 : 401,590.52 = 90,260.08 : x
  2. Step 2: Convert to fraction form
    267,702.36/401,590.52 = 90,260.08/x
  3. Step 3: Cross multiply
    267,702.36x = 401,590.52 × 90,260.08
  4. Step 4: Simplify right side
    267,702.36x = 36,247,592,462.44
  5. Step 5: Solve for x
    x = 36,247,592,462.44/267,702.36
  6. Step 6: Final answer
    x = 135,402.59

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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.