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Finding the Fourth Proportional to 303,648.85, 455,030.26 and 170,788.60

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Solution

The fourth proportional to 303,648.85, 455,030.26 and 170,788.60 is: 255,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,648.85 : 455,030.26 = 170,788.60 : x
  2. Step 2: Convert to fraction form
    303,648.85/455,030.26 = 170,788.60/x
  3. Step 3: Cross multiply
    303,648.85x = 455,030.26 × 170,788.60
  4. Step 4: Simplify right side
    303,648.85x = 77,713,981,204.85
  5. Step 5: Solve for x
    x = 77,713,981,204.85/303,648.85
  6. Step 6: Final answer
    x = 255,933.72

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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.