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Finding the Fourth Proportional to 171,081.60, 256,545.60 and 65,865.60

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Solution

The fourth proportional to 171,081.60, 256,545.60 and 65,865.60 is: 98,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,081.60 : 256,545.60 = 65,865.60 : x
  2. Step 2: Convert to fraction form
    171,081.60/256,545.60 = 65,865.60/x
  3. Step 3: Cross multiply
    171,081.60x = 256,545.60 × 65,865.60
  4. Step 4: Simplify right side
    171,081.60x = 16,897,529,871.36
  5. Step 5: Solve for x
    x = 16,897,529,871.36/171,081.60
  6. Step 6: Final answer
    x = 98,768.83

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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.