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Finding the Fourth Proportional to 107,698.82, 161,536.82 and 28,821.02

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Solution

The fourth proportional to 107,698.82, 161,536.82 and 28,821.02 is: 43,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,698.82 : 161,536.82 = 28,821.02 : x
  2. Step 2: Convert to fraction form
    107,698.82/161,536.82 = 28,821.02/x
  3. Step 3: Cross multiply
    107,698.82x = 161,536.82 × 28,821.02
  4. Step 4: Simplify right side
    107,698.82x = 4,655,654,968.17
  5. Step 5: Solve for x
    x = 4,655,654,968.17/107,698.82
  6. Step 6: Final answer
    x = 43,228.47

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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.