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Finding the Fourth Proportional to 354,395.10, 531,594.56 and 88,155.61

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Solution

The fourth proportional to 354,395.10, 531,594.56 and 88,155.61 is: 132,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,395.10 : 531,594.56 = 88,155.61 : x
  2. Step 2: Convert to fraction form
    354,395.10/531,594.56 = 88,155.61/x
  3. Step 3: Cross multiply
    354,395.10x = 531,594.56 × 88,155.61
  4. Step 4: Simplify right side
    354,395.10x = 46,863,042,709.48
  5. Step 5: Solve for x
    x = 46,863,042,709.48/354,395.10
  6. Step 6: Final answer
    x = 132,233.89

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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.