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Finding the Fourth Proportional to 303,654, 455,758.74 and 153,997.56

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Solution

The fourth proportional to 303,654, 455,758.74 and 153,997.56 is: 231,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,654 : 455,758.74 = 153,997.56 : x
  2. Step 2: Convert to fraction form
    303,654/455,758.74 = 153,997.56/x
  3. Step 3: Cross multiply
    303,654x = 455,758.74 × 153,997.56
  4. Step 4: Simplify right side
    303,654x = 70,185,733,908.67
  5. Step 5: Solve for x
    x = 70,185,733,908.67/303,654
  6. Step 6: Final answer
    x = 231,137.20

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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.