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Finding the Fourth Proportional to 490,888.54, 736,246.41 and 131,063.86

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Solution

The fourth proportional to 490,888.54, 736,246.41 and 131,063.86 is: 196,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,888.54 : 736,246.41 = 131,063.86 : x
  2. Step 2: Convert to fraction form
    490,888.54/736,246.41 = 131,063.86/x
  3. Step 3: Cross multiply
    490,888.54x = 736,246.41 × 131,063.86
  4. Step 4: Simplify right side
    490,888.54x = 96,495,296,405.74
  5. Step 5: Solve for x
    x = 96,495,296,405.74/490,888.54
  6. Step 6: Final answer
    x = 196,572.72

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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.