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Finding the Fourth Proportional to 173,435.60, 260,205.80 and 82,320.93

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Solution

The fourth proportional to 173,435.60, 260,205.80 and 82,320.93 is: 123,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,435.60 : 260,205.80 = 82,320.93 : x
  2. Step 2: Convert to fraction form
    173,435.60/260,205.80 = 82,320.93/x
  3. Step 3: Cross multiply
    173,435.60x = 260,205.80 × 82,320.93
  4. Step 4: Simplify right side
    173,435.60x = 21,420,383,447.39
  5. Step 5: Solve for x
    x = 21,420,383,447.39/173,435.60
  6. Step 6: Final answer
    x = 123,506.27

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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.