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Finding the Fourth Proportional to 455,089.23, 682,938.54 and 188,850.02

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Solution

The fourth proportional to 455,089.23, 682,938.54 and 188,850.02 is: 283,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,089.23 : 682,938.54 = 188,850.02 : x
  2. Step 2: Convert to fraction form
    455,089.23/682,938.54 = 188,850.02/x
  3. Step 3: Cross multiply
    455,089.23x = 682,938.54 × 188,850.02
  4. Step 4: Simplify right side
    455,089.23x = 128,972,953,523.08
  5. Step 5: Solve for x
    x = 128,972,953,523.08/455,089.23
  6. Step 6: Final answer
    x = 283,401.46

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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.