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Finding the Fourth Proportional to 76,404.90, 114,736.60 and 49,796.10

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Solution

The fourth proportional to 76,404.90, 114,736.60 and 49,796.10 is: 74,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,404.90 : 114,736.60 = 49,796.10 : x
  2. Step 2: Convert to fraction form
    76,404.90/114,736.60 = 49,796.10/x
  3. Step 3: Cross multiply
    76,404.90x = 114,736.60 × 49,796.10
  4. Step 4: Simplify right side
    76,404.90x = 5,713,435,207.26
  5. Step 5: Solve for x
    x = 5,713,435,207.26/76,404.90
  6. Step 6: Final answer
    x = 74,778.39

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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.