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Finding the Fourth Proportional to 335,753.85, 503,685.45 and 99,120.45

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Solution

The fourth proportional to 335,753.85, 503,685.45 and 99,120.45 is: 148,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,753.85 : 503,685.45 = 99,120.45 : x
  2. Step 2: Convert to fraction form
    335,753.85/503,685.45 = 99,120.45/x
  3. Step 3: Cross multiply
    335,753.85x = 503,685.45 × 99,120.45
  4. Step 4: Simplify right side
    335,753.85x = 49,925,527,239.27
  5. Step 5: Solve for x
    x = 49,925,527,239.27/335,753.85
  6. Step 6: Final answer
    x = 148,696.81

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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.