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Finding the Fourth Proportional to 114,311.60, 171,078.60 and 100,314.80

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Solution

The fourth proportional to 114,311.60, 171,078.60 and 100,314.80 is: 150,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,311.60 : 171,078.60 = 100,314.80 : x
  2. Step 2: Convert to fraction form
    114,311.60/171,078.60 = 100,314.80/x
  3. Step 3: Cross multiply
    114,311.60x = 171,078.60 × 100,314.80
  4. Step 4: Simplify right side
    114,311.60x = 17,161,715,543.28
  5. Step 5: Solve for x
    x = 17,161,715,543.28/114,311.60
  6. Step 6: Final answer
    x = 150,131.01

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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.