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Finding the Fourth Proportional to 439,635.60, 659,379.60 and 124,018.56

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Solution

The fourth proportional to 439,635.60, 659,379.60 and 124,018.56 is: 186,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,635.60 : 659,379.60 = 124,018.56 : x
  2. Step 2: Convert to fraction form
    439,635.60/659,379.60 = 124,018.56/x
  3. Step 3: Cross multiply
    439,635.60x = 659,379.60 × 124,018.56
  4. Step 4: Simplify right side
    439,635.60x = 81,775,308,485.38
  5. Step 5: Solve for x
    x = 81,775,308,485.38/439,635.60
  6. Step 6: Final answer
    x = 186,007.02

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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.