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Finding the Fourth Proportional to 450,867.29, 676,404.62 and 135,330.17

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Solution

The fourth proportional to 450,867.29, 676,404.62 and 135,330.17 is: 203,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,867.29 : 676,404.62 = 135,330.17 : x
  2. Step 2: Convert to fraction form
    450,867.29/676,404.62 = 135,330.17/x
  3. Step 3: Cross multiply
    450,867.29x = 676,404.62 × 135,330.17
  4. Step 4: Simplify right side
    450,867.29x = 91,537,952,213.39
  5. Step 5: Solve for x
    x = 91,537,952,213.39/450,867.29
  6. Step 6: Final answer
    x = 203,026.38

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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.