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Finding the Fourth Proportional to 108,599.80, 162,786.02 and 45,456.10

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Solution

The fourth proportional to 108,599.80, 162,786.02 and 45,456.10 is: 68,136.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,599.80 : 162,786.02 = 45,456.10 : x
  2. Step 2: Convert to fraction form
    108,599.80/162,786.02 = 45,456.10/x
  3. Step 3: Cross multiply
    108,599.80x = 162,786.02 × 45,456.10
  4. Step 4: Simplify right side
    108,599.80x = 7,399,617,603.72
  5. Step 5: Solve for x
    x = 7,399,617,603.72/108,599.80
  6. Step 6: Final answer
    x = 68,136.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.