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Finding the Fourth Proportional to 100,673.20, 151,010.70 and 30,552.51

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Solution

The fourth proportional to 100,673.20, 151,010.70 and 30,552.51 is: 45,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,673.20 : 151,010.70 = 30,552.51 : x
  2. Step 2: Convert to fraction form
    100,673.20/151,010.70 = 30,552.51/x
  3. Step 3: Cross multiply
    100,673.20x = 151,010.70 × 30,552.51
  4. Step 4: Simplify right side
    100,673.20x = 4,613,755,921.86
  5. Step 5: Solve for x
    x = 4,613,755,921.86/100,673.20
  6. Step 6: Final answer
    x = 45,829.04

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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.