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Finding the Fourth Proportional to 173,393.40, 260,090.10 and 84,660.60

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Solution

The fourth proportional to 173,393.40, 260,090.10 and 84,660.60 is: 126,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,393.40 : 260,090.10 = 84,660.60 : x
  2. Step 2: Convert to fraction form
    173,393.40/260,090.10 = 84,660.60/x
  3. Step 3: Cross multiply
    173,393.40x = 260,090.10 × 84,660.60
  4. Step 4: Simplify right side
    173,393.40x = 22,019,383,920.06
  5. Step 5: Solve for x
    x = 22,019,383,920.06/173,393.40
  6. Step 6: Final answer
    x = 126,990.90

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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.