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Finding the Fourth Proportional to 455,754.80, 683,623.20 and 136,123.14

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Solution

The fourth proportional to 455,754.80, 683,623.20 and 136,123.14 is: 204,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,754.80 : 683,623.20 = 136,123.14 : x
  2. Step 2: Convert to fraction form
    455,754.80/683,623.20 = 136,123.14/x
  3. Step 3: Cross multiply
    455,754.80x = 683,623.20 × 136,123.14
  4. Step 4: Simplify right side
    455,754.80x = 93,056,936,560.85
  5. Step 5: Solve for x
    x = 93,056,936,560.85/455,754.80
  6. Step 6: Final answer
    x = 204,182.02

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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.