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Finding the Fourth Proportional to 107,350.77, 161,029.80 and 28,472.97

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Solution

The fourth proportional to 107,350.77, 161,029.80 and 28,472.97 is: 42,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,350.77 : 161,029.80 = 28,472.97 : x
  2. Step 2: Convert to fraction form
    107,350.77/161,029.80 = 28,472.97/x
  3. Step 3: Cross multiply
    107,350.77x = 161,029.80 × 28,472.97
  4. Step 4: Simplify right side
    107,350.77x = 4,584,996,664.51
  5. Step 5: Solve for x
    x = 4,584,996,664.51/107,350.77
  6. Step 6: Final answer
    x = 42,710.42

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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.