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Finding the Fourth Proportional to 342,592.45, 472,765.53 and 189,630.94

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Solution

The fourth proportional to 342,592.45, 472,765.53 and 189,630.94 is: 261,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,592.45 : 472,765.53 = 189,630.94 : x
  2. Step 2: Convert to fraction form
    342,592.45/472,765.53 = 189,630.94/x
  3. Step 3: Cross multiply
    342,592.45x = 472,765.53 × 189,630.94
  4. Step 4: Simplify right side
    342,592.45x = 89,650,971,202.46
  5. Step 5: Solve for x
    x = 89,650,971,202.46/342,592.45
  6. Step 6: Final answer
    x = 261,684.02

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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.