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Finding the Fourth Proportional to 303,480.57, 455,279.45 and 116,477.49

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Solution

The fourth proportional to 303,480.57, 455,279.45 and 116,477.49 is: 174,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,480.57 : 455,279.45 = 116,477.49 : x
  2. Step 2: Convert to fraction form
    303,480.57/455,279.45 = 116,477.49/x
  3. Step 3: Cross multiply
    303,480.57x = 455,279.45 × 116,477.49
  4. Step 4: Simplify right side
    303,480.57x = 53,029,807,002.19
  5. Step 5: Solve for x
    x = 53,029,807,002.19/303,480.57
  6. Step 6: Final answer
    x = 174,738.72

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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.