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Finding the Fourth Proportional to 383,863.92, 575,775.12 and 117,625.23

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Solution

The fourth proportional to 383,863.92, 575,775.12 and 117,625.23 is: 176,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,863.92 : 575,775.12 = 117,625.23 : x
  2. Step 2: Convert to fraction form
    383,863.92/575,775.12 = 117,625.23/x
  3. Step 3: Cross multiply
    383,863.92x = 575,775.12 × 117,625.23
  4. Step 4: Simplify right side
    383,863.92x = 67,725,680,918.28
  5. Step 5: Solve for x
    x = 67,725,680,918.28/383,863.92
  6. Step 6: Final answer
    x = 176,431.48

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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.