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Finding the Fourth Proportional to 335,707.99, 503,611.17 and 99,019.87

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Solution

The fourth proportional to 335,707.99, 503,611.17 and 99,019.87 is: 148,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,707.99 : 503,611.17 = 99,019.87 : x
  2. Step 2: Convert to fraction form
    335,707.99/503,611.17 = 99,019.87/x
  3. Step 3: Cross multiply
    335,707.99x = 503,611.17 × 99,019.87
  4. Step 4: Simplify right side
    335,707.99x = 49,867,512,583.95
  5. Step 5: Solve for x
    x = 49,867,512,583.95/335,707.99
  6. Step 6: Final answer
    x = 148,544.31

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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.