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Finding the Fourth Proportional to 173,908.85, 260,863.28 and 85,335.35

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Solution

The fourth proportional to 173,908.85, 260,863.28 and 85,335.35 is: 128,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,908.85 : 260,863.28 = 85,335.35 : x
  2. Step 2: Convert to fraction form
    173,908.85/260,863.28 = 85,335.35/x
  3. Step 3: Cross multiply
    173,908.85x = 260,863.28 × 85,335.35
  4. Step 4: Simplify right side
    173,908.85x = 22,260,858,874.27
  5. Step 5: Solve for x
    x = 22,260,858,874.27/173,908.85
  6. Step 6: Final answer
    x = 128,003.03

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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.