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Finding the Fourth Proportional to 108,512.30, 162,768.45 and 73,082.90

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Solution

The fourth proportional to 108,512.30, 162,768.45 and 73,082.90 is: 109,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.30 : 162,768.45 = 73,082.90 : x
  2. Step 2: Convert to fraction form
    108,512.30/162,768.45 = 73,082.90/x
  3. Step 3: Cross multiply
    108,512.30x = 162,768.45 × 73,082.90
  4. Step 4: Simplify right side
    108,512.30x = 11,895,590,354.51
  5. Step 5: Solve for x
    x = 11,895,590,354.51/108,512.30
  6. Step 6: Final answer
    x = 109,624.35

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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.