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Finding the Fourth Proportional to 100,910.80, 151,384.56 and 41,714.32

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Solution

The fourth proportional to 100,910.80, 151,384.56 and 41,714.32 is: 62,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,910.80 : 151,384.56 = 41,714.32 : x
  2. Step 2: Convert to fraction form
    100,910.80/151,384.56 = 41,714.32/x
  3. Step 3: Cross multiply
    100,910.80x = 151,384.56 × 41,714.32
  4. Step 4: Simplify right side
    100,910.80x = 6,314,903,978.90
  5. Step 5: Solve for x
    x = 6,314,903,978.90/100,910.80
  6. Step 6: Final answer
    x = 62,579.07

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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.