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Finding the Fourth Proportional to 100,809.05, 151,238.48 and 41,661.63

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Solution

The fourth proportional to 100,809.05, 151,238.48 and 41,661.63 is: 62,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,809.05 : 151,238.48 = 41,661.63 : x
  2. Step 2: Convert to fraction form
    100,809.05/151,238.48 = 41,661.63/x
  3. Step 3: Cross multiply
    100,809.05x = 151,238.48 × 41,661.63
  4. Step 4: Simplify right side
    100,809.05x = 6,300,841,387.21
  5. Step 5: Solve for x
    x = 6,300,841,387.21/100,809.05
  6. Step 6: Final answer
    x = 62,502.74

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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.