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Finding the Fourth Proportional to 383,301.54, 575,039.79 and 117,099.90

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Solution

The fourth proportional to 383,301.54, 575,039.79 and 117,099.90 is: 175,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,301.54 : 575,039.79 = 117,099.90 : x
  2. Step 2: Convert to fraction form
    383,301.54/575,039.79 = 117,099.90/x
  3. Step 3: Cross multiply
    383,301.54x = 575,039.79 × 117,099.90
  4. Step 4: Simplify right side
    383,301.54x = 67,337,101,905.02
  5. Step 5: Solve for x
    x = 67,337,101,905.02/383,301.54
  6. Step 6: Final answer
    x = 175,676.58

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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.