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Finding the Fourth Proportional to 100,682.40, 151,138.80 and 59,152.80

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Solution

The fourth proportional to 100,682.40, 151,138.80 and 59,152.80 is: 88,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,682.40 : 151,138.80 = 59,152.80 : x
  2. Step 2: Convert to fraction form
    100,682.40/151,138.80 = 59,152.80/x
  3. Step 3: Cross multiply
    100,682.40x = 151,138.80 × 59,152.80
  4. Step 4: Simplify right side
    100,682.40x = 8,940,283,208.64
  5. Step 5: Solve for x
    x = 8,940,283,208.64/100,682.40
  6. Step 6: Final answer
    x = 88,796.88

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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.