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Finding the Fourth Proportional to 303,349.80, 455,024.70 and 81,733.80

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Solution

The fourth proportional to 303,349.80, 455,024.70 and 81,733.80 is: 122,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,349.80 : 455,024.70 = 81,733.80 : x
  2. Step 2: Convert to fraction form
    303,349.80/455,024.70 = 81,733.80/x
  3. Step 3: Cross multiply
    303,349.80x = 455,024.70 × 81,733.80
  4. Step 4: Simplify right side
    303,349.80x = 37,190,897,824.86
  5. Step 5: Solve for x
    x = 37,190,897,824.86/303,349.80
  6. Step 6: Final answer
    x = 122,600.70

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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.