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Finding the Fourth Proportional to 482,410.35, 723,650.36 and 127,419.75

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Solution

The fourth proportional to 482,410.35, 723,650.36 and 127,419.75 is: 191,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,410.35 : 723,650.36 = 127,419.75 : x
  2. Step 2: Convert to fraction form
    482,410.35/723,650.36 = 127,419.75/x
  3. Step 3: Cross multiply
    482,410.35x = 723,650.36 × 127,419.75
  4. Step 4: Simplify right side
    482,410.35x = 92,207,347,321.51
  5. Step 5: Solve for x
    x = 92,207,347,321.51/482,410.35
  6. Step 6: Final answer
    x = 191,138.82

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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.