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Finding the Fourth Proportional to 188,611.96, 260,285.22 and 103,734.36

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Solution

The fourth proportional to 188,611.96, 260,285.22 and 103,734.36 is: 143,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,611.96 : 260,285.22 = 103,734.36 : x
  2. Step 2: Convert to fraction form
    188,611.96/260,285.22 = 103,734.36/x
  3. Step 3: Cross multiply
    188,611.96x = 260,285.22 × 103,734.36
  4. Step 4: Simplify right side
    188,611.96x = 27,000,520,714.16
  5. Step 5: Solve for x
    x = 27,000,520,714.16/188,611.96
  6. Step 6: Final answer
    x = 143,153.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.