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Finding the Fourth Proportional to 108,638.89, 149,921.19 and 60,892.24

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Solution

The fourth proportional to 108,638.89, 149,921.19 and 60,892.24 is: 84,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,638.89 : 149,921.19 = 60,892.24 : x
  2. Step 2: Convert to fraction form
    108,638.89/149,921.19 = 60,892.24/x
  3. Step 3: Cross multiply
    108,638.89x = 149,921.19 × 60,892.24
  4. Step 4: Simplify right side
    108,638.89x = 9,129,037,082.57
  5. Step 5: Solve for x
    x = 9,129,037,082.57/108,638.89
  6. Step 6: Final answer
    x = 84,031.02

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1.5x scale

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.