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Finding the Fourth Proportional to 108,231.84, 149,365.84 and 60,485.28

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Solution

The fourth proportional to 108,231.84, 149,365.84 and 60,485.28 is: 83,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,231.84 : 149,365.84 = 60,485.28 : x
  2. Step 2: Convert to fraction form
    108,231.84/149,365.84 = 60,485.28/x
  3. Step 3: Cross multiply
    108,231.84x = 149,365.84 × 60,485.28
  4. Step 4: Simplify right side
    108,231.84x = 9,034,434,654.84
  5. Step 5: Solve for x
    x = 9,034,434,654.84/108,231.84
  6. Step 6: Final answer
    x = 83,472.98

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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.