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Finding the Fourth Proportional to 108,591.70, 149,855.08 and 60,845.98

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Solution

The fourth proportional to 108,591.70, 149,855.08 and 60,845.98 is: 83,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,591.70 : 149,855.08 = 60,845.98 : x
  2. Step 2: Convert to fraction form
    108,591.70/149,855.08 = 60,845.98/x
  3. Step 3: Cross multiply
    108,591.70x = 149,855.08 × 60,845.98
  4. Step 4: Simplify right side
    108,591.70x = 9,118,079,200.58
  5. Step 5: Solve for x
    x = 9,118,079,200.58/108,591.70
  6. Step 6: Final answer
    x = 83,966.63

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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.