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Finding the Fourth Proportional to 104,657.20, 156,985.80 and 95,471.80

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Solution

The fourth proportional to 104,657.20, 156,985.80 and 95,471.80 is: 143,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,657.20 : 156,985.80 = 95,471.80 : x
  2. Step 2: Convert to fraction form
    104,657.20/156,985.80 = 95,471.80/x
  3. Step 3: Cross multiply
    104,657.20x = 156,985.80 × 95,471.80
  4. Step 4: Simplify right side
    104,657.20x = 14,987,716,900.44
  5. Step 5: Solve for x
    x = 14,987,716,900.44/104,657.20
  6. Step 6: Final answer
    x = 143,207.70

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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.