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Finding the Fourth Proportional to 342,753.59, 472,994.17 and 189,788.49

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Solution

The fourth proportional to 342,753.59, 472,994.17 and 189,788.49 is: 261,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,753.59 : 472,994.17 = 189,788.49 : x
  2. Step 2: Convert to fraction form
    342,753.59/472,994.17 = 189,788.49/x
  3. Step 3: Cross multiply
    342,753.59x = 472,994.17 × 189,788.49
  4. Step 4: Simplify right side
    342,753.59x = 89,768,848,828.63
  5. Step 5: Solve for x
    x = 89,768,848,828.63/342,753.59
  6. Step 6: Final answer
    x = 261,904.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.