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Finding the Fourth Proportional to 173,305.20, 259,905.96 and 90,153.84

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Solution

The fourth proportional to 173,305.20, 259,905.96 and 90,153.84 is: 135,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,305.20 : 259,905.96 = 90,153.84 : x
  2. Step 2: Convert to fraction form
    173,305.20/259,905.96 = 90,153.84/x
  3. Step 3: Cross multiply
    173,305.20x = 259,905.96 × 90,153.84
  4. Step 4: Simplify right side
    173,305.20x = 23,431,520,332.89
  5. Step 5: Solve for x
    x = 23,431,520,332.89/173,305.20
  6. Step 6: Final answer
    x = 135,203.79

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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.