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Finding the Fourth Proportional to 351,063.30, 526,275.06 and 126,370.92

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Solution

The fourth proportional to 351,063.30, 526,275.06 and 126,370.92 is: 189,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,063.30 : 526,275.06 = 126,370.92 : x
  2. Step 2: Convert to fraction form
    351,063.30/526,275.06 = 126,370.92/x
  3. Step 3: Cross multiply
    351,063.30x = 526,275.06 × 126,370.92
  4. Step 4: Simplify right side
    351,063.30x = 66,505,863,505.26
  5. Step 5: Solve for x
    x = 66,505,863,505.26/351,063.30
  6. Step 6: Final answer
    x = 189,441.23

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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.