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Finding the Fourth Proportional to 94,690.72, 142,027.44 and 87,266.08

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Solution

The fourth proportional to 94,690.72, 142,027.44 and 87,266.08 is: 130,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,690.72 : 142,027.44 = 87,266.08 : x
  2. Step 2: Convert to fraction form
    94,690.72/142,027.44 = 87,266.08/x
  3. Step 3: Cross multiply
    94,690.72x = 142,027.44 × 87,266.08
  4. Step 4: Simplify right side
    94,690.72x = 12,394,177,941.24
  5. Step 5: Solve for x
    x = 12,394,177,941.24/94,690.72
  6. Step 6: Final answer
    x = 130,891.16

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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.