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Finding the Fourth Proportional to 108,466.30, 162,526.65 and 80,472.70

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Solution

The fourth proportional to 108,466.30, 162,526.65 and 80,472.70 is: 120,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,466.30 : 162,526.65 = 80,472.70 : x
  2. Step 2: Convert to fraction form
    108,466.30/162,526.65 = 80,472.70/x
  3. Step 3: Cross multiply
    108,466.30x = 162,526.65 × 80,472.70
  4. Step 4: Simplify right side
    108,466.30x = 13,078,958,347.46
  5. Step 5: Solve for x
    x = 13,078,958,347.46/108,466.30
  6. Step 6: Final answer
    x = 120,580.85

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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.