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Finding the Fourth Proportional to 408,774.74, 613,254.39 and 124,490.74

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Solution

The fourth proportional to 408,774.74, 613,254.39 and 124,490.74 is: 186,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,774.74 : 613,254.39 = 124,490.74 : x
  2. Step 2: Convert to fraction form
    408,774.74/613,254.39 = 124,490.74/x
  3. Step 3: Cross multiply
    408,774.74x = 613,254.39 × 124,490.74
  4. Step 4: Simplify right side
    408,774.74x = 76,344,492,819.35
  5. Step 5: Solve for x
    x = 76,344,492,819.35/408,774.74
  6. Step 6: Final answer
    x = 186,764.21

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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.