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Finding the Fourth Proportional to 100,787.76, 151,169.90 and 37,610.06

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Solution

The fourth proportional to 100,787.76, 151,169.90 and 37,610.06 is: 56,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,787.76 : 151,169.90 = 37,610.06 : x
  2. Step 2: Convert to fraction form
    100,787.76/151,169.90 = 37,610.06/x
  3. Step 3: Cross multiply
    100,787.76x = 151,169.90 × 37,610.06
  4. Step 4: Simplify right side
    100,787.76x = 5,685,508,065.29
  5. Step 5: Solve for x
    x = 5,685,508,065.29/100,787.76
  6. Step 6: Final answer
    x = 56,410.70

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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.