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Finding the Fourth Proportional to 454,671.10, 682,076.70 and 155,081.69

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Solution

The fourth proportional to 454,671.10, 682,076.70 and 155,081.69 is: 232,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,671.10 : 682,076.70 = 155,081.69 : x
  2. Step 2: Convert to fraction form
    454,671.10/682,076.70 = 155,081.69/x
  3. Step 3: Cross multiply
    454,671.10x = 682,076.70 × 155,081.69
  4. Step 4: Simplify right side
    454,671.10x = 105,777,607,345.62
  5. Step 5: Solve for x
    x = 105,777,607,345.62/454,671.10
  6. Step 6: Final answer
    x = 232,646.43

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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.