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Finding the Fourth Proportional to 146,953.80, 220,545.90 and 68,077.80

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Solution

The fourth proportional to 146,953.80, 220,545.90 and 68,077.80 is: 102,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,953.80 : 220,545.90 = 68,077.80 : x
  2. Step 2: Convert to fraction form
    146,953.80/220,545.90 = 68,077.80/x
  3. Step 3: Cross multiply
    146,953.80x = 220,545.90 × 68,077.80
  4. Step 4: Simplify right side
    146,953.80x = 15,014,279,671.02
  5. Step 5: Solve for x
    x = 15,014,279,671.02/146,953.80
  6. Step 6: Final answer
    x = 102,170.07

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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.