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Finding the Fourth Proportional to 203,605.72, 305,428.02 and 63,326.68

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Solution

The fourth proportional to 203,605.72, 305,428.02 and 63,326.68 is: 94,996.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,605.72 : 305,428.02 = 63,326.68 : x
  2. Step 2: Convert to fraction form
    203,605.72/305,428.02 = 63,326.68/x
  3. Step 3: Cross multiply
    203,605.72x = 305,428.02 × 63,326.68
  4. Step 4: Simplify right side
    203,605.72x = 19,341,742,485.57
  5. Step 5: Solve for x
    x = 19,341,742,485.57/203,605.72
  6. Step 6: Final answer
    x = 94,996.07

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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.