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Finding the Fourth Proportional to 108,660.88, 149,950.60 and 60,913.81

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Solution

The fourth proportional to 108,660.88, 149,950.60 and 60,913.81 is: 84,060.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,660.88 : 149,950.60 = 60,913.81 : x
  2. Step 2: Convert to fraction form
    108,660.88/149,950.60 = 60,913.81/x
  3. Step 3: Cross multiply
    108,660.88x = 149,950.60 × 60,913.81
  4. Step 4: Simplify right side
    108,660.88x = 9,134,062,357.79
  5. Step 5: Solve for x
    x = 9,134,062,357.79/108,660.88
  6. Step 6: Final answer
    x = 84,060.26

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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.