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Finding the Fourth Proportional to 222,718.98, 307,348.43 and 125,921.25

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Solution

The fourth proportional to 222,718.98, 307,348.43 and 125,921.25 is: 173,769.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,718.98 : 307,348.43 = 125,921.25 : x
  2. Step 2: Convert to fraction form
    222,718.98/307,348.43 = 125,921.25/x
  3. Step 3: Cross multiply
    222,718.98x = 307,348.43 × 125,921.25
  4. Step 4: Simplify right side
    222,718.98x = 38,701,697,861.53
  5. Step 5: Solve for x
    x = 38,701,697,861.53/222,718.98
  6. Step 6: Final answer
    x = 173,769.19

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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.