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Finding the Fourth Proportional to 205,363.85, 308,074.94 and 63,220.96

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Solution

The fourth proportional to 205,363.85, 308,074.94 and 63,220.96 is: 94,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,363.85 : 308,074.94 = 63,220.96 : x
  2. Step 2: Convert to fraction form
    205,363.85/308,074.94 = 63,220.96/x
  3. Step 3: Cross multiply
    205,363.85x = 308,074.94 × 63,220.96
  4. Step 4: Simplify right side
    205,363.85x = 19,476,791,602.26
  5. Step 5: Solve for x
    x = 19,476,791,602.26/205,363.85
  6. Step 6: Final answer
    x = 94,840.41

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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.