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Finding the Fourth Proportional to 493,262.88, 739,881.55 and 133,468.57

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Solution

The fourth proportional to 493,262.88, 739,881.55 and 133,468.57 is: 200,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,262.88 : 739,881.55 = 133,468.57 : x
  2. Step 2: Convert to fraction form
    493,262.88/739,881.55 = 133,468.57/x
  3. Step 3: Cross multiply
    493,262.88x = 739,881.55 × 133,468.57
  4. Step 4: Simplify right side
    493,262.88x = 98,750,932,447.88
  5. Step 5: Solve for x
    x = 98,750,932,447.88/493,262.88
  6. Step 6: Final answer
    x = 200,199.40

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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.