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Finding the Fourth Proportional to 108,511.70, 162,816.15 and 49,316.90

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Solution

The fourth proportional to 108,511.70, 162,816.15 and 49,316.90 is: 73,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,511.70 : 162,816.15 = 49,316.90 : x
  2. Step 2: Convert to fraction form
    108,511.70/162,816.15 = 49,316.90/x
  3. Step 3: Cross multiply
    108,511.70x = 162,816.15 × 49,316.90
  4. Step 4: Simplify right side
    108,511.70x = 8,029,587,787.94
  5. Step 5: Solve for x
    x = 8,029,587,787.94/108,511.70
  6. Step 6: Final answer
    x = 73,997.44

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1.5x scale

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.