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Finding the Fourth Proportional to 477,227.78, 715,825.28 and 122,244.88

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Solution

The fourth proportional to 477,227.78, 715,825.28 and 122,244.88 is: 183,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,227.78 : 715,825.28 = 122,244.88 : x
  2. Step 2: Convert to fraction form
    477,227.78/715,825.28 = 122,244.88/x
  3. Step 3: Cross multiply
    477,227.78x = 715,825.28 × 122,244.88
  4. Step 4: Simplify right side
    477,227.78x = 87,505,975,454.57
  5. Step 5: Solve for x
    x = 87,505,975,454.57/477,227.78
  6. Step 6: Final answer
    x = 183,363.12

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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.