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Finding the Fourth Proportional to 118,354.78, 177,609.78 and 43,475.56

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Solution

The fourth proportional to 118,354.78, 177,609.78 and 43,475.56 is: 65,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,354.78 : 177,609.78 = 43,475.56 : x
  2. Step 2: Convert to fraction form
    118,354.78/177,609.78 = 43,475.56/x
  3. Step 3: Cross multiply
    118,354.78x = 177,609.78 × 43,475.56
  4. Step 4: Simplify right side
    118,354.78x = 7,721,684,646.98
  5. Step 5: Solve for x
    x = 7,721,684,646.98/118,354.78
  6. Step 6: Final answer
    x = 65,241.85

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1.5x scale

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.