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Finding the Fourth Proportional to 225,352.86, 338,361.39 and 125,707.74

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Solution

The fourth proportional to 225,352.86, 338,361.39 and 125,707.74 is: 188,746.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,352.86 : 338,361.39 = 125,707.74 : x
  2. Step 2: Convert to fraction form
    225,352.86/338,361.39 = 125,707.74/x
  3. Step 3: Cross multiply
    225,352.86x = 338,361.39 × 125,707.74
  4. Step 4: Simplify right side
    225,352.86x = 42,534,645,640.16
  5. Step 5: Solve for x
    x = 42,534,645,640.16/225,352.86
  6. Step 6: Final answer
    x = 188,746.86

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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.