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Finding the Fourth Proportional to 223,376.84, 308,331.90 and 143,020.82

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Solution

The fourth proportional to 223,376.84, 308,331.90 and 143,020.82 is: 197,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,376.84 : 308,331.90 = 143,020.82 : x
  2. Step 2: Convert to fraction form
    223,376.84/308,331.90 = 143,020.82/x
  3. Step 3: Cross multiply
    223,376.84x = 308,331.90 × 143,020.82
  4. Step 4: Simplify right side
    223,376.84x = 44,097,881,170.16
  5. Step 5: Solve for x
    x = 44,097,881,170.16/223,376.84
  6. Step 6: Final answer
    x = 197,414.74

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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.