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Finding the Fourth Proportional to 335,803.78, 503,584.70 and 111,122.74

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Solution

The fourth proportional to 335,803.78, 503,584.70 and 111,122.74 is: 166,644.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,803.78 : 503,584.70 = 111,122.74 : x
  2. Step 2: Convert to fraction form
    335,803.78/503,584.70 = 111,122.74/x
  3. Step 3: Cross multiply
    335,803.78x = 503,584.70 × 111,122.74
  4. Step 4: Simplify right side
    335,803.78x = 55,959,711,686.08
  5. Step 5: Solve for x
    x = 55,959,711,686.08/335,803.78
  6. Step 6: Final answer
    x = 166,644.08

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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.