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Finding the Fourth Proportional to 303,736.80, 455,605.20 and 93,347.40

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Solution

The fourth proportional to 303,736.80, 455,605.20 and 93,347.40 is: 140,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,736.80 : 455,605.20 = 93,347.40 : x
  2. Step 2: Convert to fraction form
    303,736.80/455,605.20 = 93,347.40/x
  3. Step 3: Cross multiply
    303,736.80x = 455,605.20 × 93,347.40
  4. Step 4: Simplify right side
    303,736.80x = 42,529,560,846.48
  5. Step 5: Solve for x
    x = 42,529,560,846.48/303,736.80
  6. Step 6: Final answer
    x = 140,021.10

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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.