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Finding the Fourth Proportional to 201,003.90, 301,246.65 and 154,023.90

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Solution

The fourth proportional to 201,003.90, 301,246.65 and 154,023.90 is: 230,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,003.90 : 301,246.65 = 154,023.90 : x
  2. Step 2: Convert to fraction form
    201,003.90/301,246.65 = 154,023.90/x
  3. Step 3: Cross multiply
    201,003.90x = 301,246.65 × 154,023.90
  4. Step 4: Simplify right side
    201,003.90x = 46,399,183,894.94
  5. Step 5: Solve for x
    x = 46,399,183,894.94/201,003.90
  6. Step 6: Final answer
    x = 230,837.23

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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.