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Finding the Fourth Proportional to 108,586.29, 149,855.21 and 60,855.02

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Solution

The fourth proportional to 108,586.29, 149,855.21 and 60,855.02 is: 83,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,586.29 : 149,855.21 = 60,855.02 : x
  2. Step 2: Convert to fraction form
    108,586.29/149,855.21 = 60,855.02/x
  3. Step 3: Cross multiply
    108,586.29x = 149,855.21 × 60,855.02
  4. Step 4: Simplify right side
    108,586.29x = 9,119,440,748.10
  5. Step 5: Solve for x
    x = 9,119,440,748.10/108,586.29
  6. Step 6: Final answer
    x = 83,983.35

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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.