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Finding the Fourth Proportional to 80,173.91, 120,302.37 and 58,168.91

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Solution

The fourth proportional to 80,173.91, 120,302.37 and 58,168.91 is: 87,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173.91 : 120,302.37 = 58,168.91 : x
  2. Step 2: Convert to fraction form
    80,173.91/120,302.37 = 58,168.91/x
  3. Step 3: Cross multiply
    80,173.91x = 120,302.37 × 58,168.91
  4. Step 4: Simplify right side
    80,173.91x = 6,997,857,733.32
  5. Step 5: Solve for x
    x = 6,997,857,733.32/80,173.91
  6. Step 6: Final answer
    x = 87,283.48

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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.