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Finding the Fourth Proportional to 108,606.69, 149,875.79 and 60,860.97

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Solution

The fourth proportional to 108,606.69, 149,875.79 and 60,860.97 is: 83,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,606.69 : 149,875.79 = 60,860.97 : x
  2. Step 2: Convert to fraction form
    108,606.69/149,875.79 = 60,860.97/x
  3. Step 3: Cross multiply
    108,606.69x = 149,875.79 × 60,860.97
  4. Step 4: Simplify right side
    108,606.69x = 9,121,585,654.61
  5. Step 5: Solve for x
    x = 9,121,585,654.61/108,606.69
  6. Step 6: Final answer
    x = 83,987.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.