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Finding the Fourth Proportional to 270,929.76, 373,847.64 and 156,212.72

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Solution

The fourth proportional to 270,929.76, 373,847.64 and 156,212.72 is: 215,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,929.76 : 373,847.64 = 156,212.72 : x
  2. Step 2: Convert to fraction form
    270,929.76/373,847.64 = 156,212.72/x
  3. Step 3: Cross multiply
    270,929.76x = 373,847.64 × 156,212.72
  4. Step 4: Simplify right side
    270,929.76x = 58,399,756,709.98
  5. Step 5: Solve for x
    x = 58,399,756,709.98/270,929.76
  6. Step 6: Final answer
    x = 215,553.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.