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Finding the Fourth Proportional to 203,029.76, 304,564.92 and 69,892.40

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Solution

The fourth proportional to 203,029.76, 304,564.92 and 69,892.40 is: 104,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,029.76 : 304,564.92 = 69,892.40 : x
  2. Step 2: Convert to fraction form
    203,029.76/304,564.92 = 69,892.40/x
  3. Step 3: Cross multiply
    203,029.76x = 304,564.92 × 69,892.40
  4. Step 4: Simplify right side
    203,029.76x = 21,286,773,214.61
  5. Step 5: Solve for x
    x = 21,286,773,214.61/203,029.76
  6. Step 6: Final answer
    x = 104,845.58

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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.