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Finding the Fourth Proportional to 108,608.84, 149,880.11 and 60,862.53

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Solution

The fourth proportional to 108,608.84, 149,880.11 and 60,862.53 is: 83,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,608.84 : 149,880.11 = 60,862.53 : x
  2. Step 2: Convert to fraction form
    108,608.84/149,880.11 = 60,862.53/x
  3. Step 3: Cross multiply
    108,608.84x = 149,880.11 × 60,862.53
  4. Step 4: Simplify right side
    108,608.84x = 9,122,082,949.02
  5. Step 5: Solve for x
    x = 9,122,082,949.02/108,608.84
  6. Step 6: Final answer
    x = 83,990.24

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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.