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Finding the Fourth Proportional to 108,768.20, 163,065.90 and 59,520.20

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Solution

The fourth proportional to 108,768.20, 163,065.90 and 59,520.20 is: 89,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,768.20 : 163,065.90 = 59,520.20 : x
  2. Step 2: Convert to fraction form
    108,768.20/163,065.90 = 59,520.20/x
  3. Step 3: Cross multiply
    108,768.20x = 163,065.90 × 59,520.20
  4. Step 4: Simplify right side
    108,768.20x = 9,705,714,981.18
  5. Step 5: Solve for x
    x = 9,705,714,981.18/108,768.20
  6. Step 6: Final answer
    x = 89,233.02

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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.