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Finding the Fourth Proportional to 108,207.67, 149,325.77 and 59,812.78

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Solution

The fourth proportional to 108,207.67, 149,325.77 and 59,812.78 is: 82,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,207.67 : 149,325.77 = 59,812.78 : x
  2. Step 2: Convert to fraction form
    108,207.67/149,325.77 = 59,812.78/x
  3. Step 3: Cross multiply
    108,207.67x = 149,325.77 × 59,812.78
  4. Step 4: Simplify right side
    108,207.67x = 8,931,589,093.41
  5. Step 5: Solve for x
    x = 8,931,589,093.41/108,207.67
  6. Step 6: Final answer
    x = 82,541.18

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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.