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Finding the Fourth Proportional to 203,248.23, 304,749.22 and 90,907.50

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Solution

The fourth proportional to 203,248.23, 304,749.22 and 90,907.50 is: 136,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,248.23 : 304,749.22 = 90,907.50 : x
  2. Step 2: Convert to fraction form
    203,248.23/304,749.22 = 90,907.50/x
  3. Step 3: Cross multiply
    203,248.23x = 304,749.22 × 90,907.50
  4. Step 4: Simplify right side
    203,248.23x = 27,703,989,717.15
  5. Step 5: Solve for x
    x = 27,703,989,717.15/203,248.23
  6. Step 6: Final answer
    x = 136,306.18

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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.