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Finding the Fourth Proportional to 203,020.76, 304,551.42 and 69,883.40

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Solution

The fourth proportional to 203,020.76, 304,551.42 and 69,883.40 is: 104,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,020.76 : 304,551.42 = 69,883.40 : x
  2. Step 2: Convert to fraction form
    203,020.76/304,551.42 = 69,883.40/x
  3. Step 3: Cross multiply
    203,020.76x = 304,551.42 × 69,883.40
  4. Step 4: Simplify right side
    203,020.76x = 21,283,088,704.43
  5. Step 5: Solve for x
    x = 21,283,088,704.43/203,020.76
  6. Step 6: Final answer
    x = 104,832.08

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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.