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Finding the Fourth Proportional to 108,153.01, 162,229.52 and 70,744.53

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Solution

The fourth proportional to 108,153.01, 162,229.52 and 70,744.53 is: 106,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,153.01 : 162,229.52 = 70,744.53 : x
  2. Step 2: Convert to fraction form
    108,153.01/162,229.52 = 70,744.53/x
  3. Step 3: Cross multiply
    108,153.01x = 162,229.52 × 70,744.53
  4. Step 4: Simplify right side
    108,153.01x = 11,476,851,144.53
  5. Step 5: Solve for x
    x = 11,476,851,144.53/108,153.01
  6. Step 6: Final answer
    x = 106,116.80

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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.