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Finding the Fourth Proportional to 87,999.30, 131,950.35 and 35,349.30

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Solution

The fourth proportional to 87,999.30, 131,950.35 and 35,349.30 is: 53,004.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.30 : 131,950.35 = 35,349.30 : x
  2. Step 2: Convert to fraction form
    87,999.30/131,950.35 = 35,349.30/x
  3. Step 3: Cross multiply
    87,999.30x = 131,950.35 × 35,349.30
  4. Step 4: Simplify right side
    87,999.30x = 4,664,352,507.26
  5. Step 5: Solve for x
    x = 4,664,352,507.26/87,999.30
  6. Step 6: Final answer
    x = 53,004.43

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1.5x scale

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.