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Finding the Fourth Proportional to 108,062.70, 162,094.05 and 68,648.10

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Solution

The fourth proportional to 108,062.70, 162,094.05 and 68,648.10 is: 102,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,062.70 : 162,094.05 = 68,648.10 : x
  2. Step 2: Convert to fraction form
    108,062.70/162,094.05 = 68,648.10/x
  3. Step 3: Cross multiply
    108,062.70x = 162,094.05 × 68,648.10
  4. Step 4: Simplify right side
    108,062.70x = 11,127,448,553.81
  5. Step 5: Solve for x
    x = 11,127,448,553.81/108,062.70
  6. Step 6: Final answer
    x = 102,972.15

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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.