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Finding the Fourth Proportional to 439,794.96, 659,735.64 and 124,254.32

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Solution

The fourth proportional to 439,794.96, 659,735.64 and 124,254.32 is: 186,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,794.96 : 659,735.64 = 124,254.32 : x
  2. Step 2: Convert to fraction form
    439,794.96/659,735.64 = 124,254.32/x
  3. Step 3: Cross multiply
    439,794.96x = 659,735.64 × 124,254.32
  4. Step 4: Simplify right side
    439,794.96x = 81,975,003,327.96
  5. Step 5: Solve for x
    x = 81,975,003,327.96/439,794.96
  6. Step 6: Final answer
    x = 186,393.69

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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.