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Finding the Fourth Proportional to 260,715.75, 359,787.75 and 141,483.75

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Solution

The fourth proportional to 260,715.75, 359,787.75 and 141,483.75 is: 195,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,715.75 : 359,787.75 = 141,483.75 : x
  2. Step 2: Convert to fraction form
    260,715.75/359,787.75 = 141,483.75/x
  3. Step 3: Cross multiply
    260,715.75x = 359,787.75 × 141,483.75
  4. Step 4: Simplify right side
    260,715.75x = 50,904,120,074.06
  5. Step 5: Solve for x
    x = 50,904,120,074.06/260,715.75
  6. Step 6: Final answer
    x = 195,247.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.