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Finding the Fourth Proportional to 641,372.74, 961,788.45 and 192,157.48

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Solution

The fourth proportional to 641,372.74, 961,788.45 and 192,157.48 is: 288,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,372.74 : 961,788.45 = 192,157.48 : x
  2. Step 2: Convert to fraction form
    641,372.74/961,788.45 = 192,157.48/x
  3. Step 3: Cross multiply
    641,372.74x = 961,788.45 × 192,157.48
  4. Step 4: Simplify right side
    641,372.74x = 184,814,844,845.11
  5. Step 5: Solve for x
    x = 184,814,844,845.11/641,372.74
  6. Step 6: Final answer
    x = 288,155.13

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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.