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Finding the Fourth Proportional to 108,689.76, 163,058.16 and 33,808.56

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Solution

The fourth proportional to 108,689.76, 163,058.16 and 33,808.56 is: 50,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,689.76 : 163,058.16 = 33,808.56 : x
  2. Step 2: Convert to fraction form
    108,689.76/163,058.16 = 33,808.56/x
  3. Step 3: Cross multiply
    108,689.76x = 163,058.16 × 33,808.56
  4. Step 4: Simplify right side
    108,689.76x = 5,512,761,585.85
  5. Step 5: Solve for x
    x = 5,512,761,585.85/108,689.76
  6. Step 6: Final answer
    x = 50,720.16

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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.