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Finding the Fourth Proportional to 335,644.42, 503,468 and 135,968.59

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Solution

The fourth proportional to 335,644.42, 503,468 and 135,968.59 is: 203,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,644.42 : 503,468 = 135,968.59 : x
  2. Step 2: Convert to fraction form
    335,644.42/503,468 = 135,968.59/x
  3. Step 3: Cross multiply
    335,644.42x = 503,468 × 135,968.59
  4. Step 4: Simplify right side
    335,644.42x = 68,455,834,070.12
  5. Step 5: Solve for x
    x = 68,455,834,070.12/335,644.42
  6. Step 6: Final answer
    x = 203,953.44

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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.