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Finding the Fourth Proportional to 173,856.70, 260,785.05 and 80,544.70

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Solution

The fourth proportional to 173,856.70, 260,785.05 and 80,544.70 is: 120,817.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,856.70 : 260,785.05 = 80,544.70 : x
  2. Step 2: Convert to fraction form
    173,856.70/260,785.05 = 80,544.70/x
  3. Step 3: Cross multiply
    173,856.70x = 260,785.05 × 80,544.70
  4. Step 4: Simplify right side
    173,856.70x = 21,004,853,616.74
  5. Step 5: Solve for x
    x = 21,004,853,616.74/173,856.70
  6. Step 6: Final answer
    x = 120,817.05

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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.