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Finding the Fourth Proportional to 270,756, 373,643.28 and 151,524

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Solution

The fourth proportional to 270,756, 373,643.28 and 151,524 is: 209,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,756 : 373,643.28 = 151,524 : x
  2. Step 2: Convert to fraction form
    270,756/373,643.28 = 151,524/x
  3. Step 3: Cross multiply
    270,756x = 373,643.28 × 151,524
  4. Step 4: Simplify right side
    270,756x = 56,615,924,358.72
  5. Step 5: Solve for x
    x = 56,615,924,358.72/270,756
  6. Step 6: Final answer
    x = 209,103.12

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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.