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Finding the Fourth Proportional to 150,707.80, 226,061.70 and 45,515.80

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Solution

The fourth proportional to 150,707.80, 226,061.70 and 45,515.80 is: 68,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,707.80 : 226,061.70 = 45,515.80 : x
  2. Step 2: Convert to fraction form
    150,707.80/226,061.70 = 45,515.80/x
  3. Step 3: Cross multiply
    150,707.80x = 226,061.70 × 45,515.80
  4. Step 4: Simplify right side
    150,707.80x = 10,289,379,124.86
  5. Step 5: Solve for x
    x = 10,289,379,124.86/150,707.80
  6. Step 6: Final answer
    x = 68,273.70

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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.