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Finding the Fourth Proportional to 303,749.20, 455,623.80 and 93,359.80

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Solution

The fourth proportional to 303,749.20, 455,623.80 and 93,359.80 is: 140,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,749.20 : 455,623.80 = 93,359.80 : x
  2. Step 2: Convert to fraction form
    303,749.20/455,623.80 = 93,359.80/x
  3. Step 3: Cross multiply
    303,749.20x = 455,623.80 × 93,359.80
  4. Step 4: Simplify right side
    303,749.20x = 42,536,946,843.24
  5. Step 5: Solve for x
    x = 42,536,946,843.24/303,749.20
  6. Step 6: Final answer
    x = 140,039.70

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1.5x scale

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.