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Finding the Fourth Proportional to 151,279.60, 218,122.56 and 151,279.60

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Solution

The fourth proportional to 151,279.60, 218,122.56 and 151,279.60 is: 218,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,279.60 : 218,122.56 = 151,279.60 : x
  2. Step 2: Convert to fraction form
    151,279.60/218,122.56 = 151,279.60/x
  3. Step 3: Cross multiply
    151,279.60x = 218,122.56 × 151,279.60
  4. Step 4: Simplify right side
    151,279.60x = 32,997,493,627.78
  5. Step 5: Solve for x
    x = 32,997,493,627.78/151,279.60
  6. Step 6: Final answer
    x = 218,122.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.