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Finding the Fourth Proportional to 303,909.23, 455,883.30 and 116,920.73

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Solution

The fourth proportional to 303,909.23, 455,883.30 and 116,920.73 is: 175,388.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,909.23 : 455,883.30 = 116,920.73 : x
  2. Step 2: Convert to fraction form
    303,909.23/455,883.30 = 116,920.73/x
  3. Step 3: Cross multiply
    303,909.23x = 455,883.30 × 116,920.73
  4. Step 4: Simplify right side
    303,909.23x = 53,302,208,230.81
  5. Step 5: Solve for x
    x = 53,302,208,230.81/303,909.23
  6. Step 6: Final answer
    x = 175,388.58

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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.