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Finding the Fourth Proportional to 304,076.20, 455,961.30 and 93,686.80

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Solution

The fourth proportional to 304,076.20, 455,961.30 and 93,686.80 is: 140,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,076.20 : 455,961.30 = 93,686.80 : x
  2. Step 2: Convert to fraction form
    304,076.20/455,961.30 = 93,686.80/x
  3. Step 3: Cross multiply
    304,076.20x = 455,961.30 × 93,686.80
  4. Step 4: Simplify right side
    304,076.20x = 42,717,555,120.84
  5. Step 5: Solve for x
    x = 42,717,555,120.84/304,076.20
  6. Step 6: Final answer
    x = 140,483.06

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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.