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Finding the Fourth Proportional to 303,675.75, 455,546.70 and 186,102.63

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Solution

The fourth proportional to 303,675.75, 455,546.70 and 186,102.63 is: 279,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,675.75 : 455,546.70 = 186,102.63 : x
  2. Step 2: Convert to fraction form
    303,675.75/455,546.70 = 186,102.63/x
  3. Step 3: Cross multiply
    303,675.75x = 455,546.70 × 186,102.63
  4. Step 4: Simplify right side
    303,675.75x = 84,778,438,957.82
  5. Step 5: Solve for x
    x = 84,778,438,957.82/303,675.75
  6. Step 6: Final answer
    x = 279,174.21

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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.