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Finding the Fourth Proportional to 151,638.80, 227,436.60 and 51,803.60

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Solution

The fourth proportional to 151,638.80, 227,436.60 and 51,803.60 is: 77,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,638.80 : 227,436.60 = 51,803.60 : x
  2. Step 2: Convert to fraction form
    151,638.80/227,436.60 = 51,803.60/x
  3. Step 3: Cross multiply
    151,638.80x = 227,436.60 × 51,803.60
  4. Step 4: Simplify right side
    151,638.80x = 11,782,034,651.76
  5. Step 5: Solve for x
    x = 11,782,034,651.76/151,638.80
  6. Step 6: Final answer
    x = 77,698.02

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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.