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Finding the Fourth Proportional to 260,838.66, 391,273.36 and 73,834.50

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Solution

The fourth proportional to 260,838.66, 391,273.36 and 73,834.50 is: 110,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,838.66 : 391,273.36 = 73,834.50 : x
  2. Step 2: Convert to fraction form
    260,838.66/391,273.36 = 73,834.50/x
  3. Step 3: Cross multiply
    260,838.66x = 391,273.36 × 73,834.50
  4. Step 4: Simplify right side
    260,838.66x = 28,889,472,898.92
  5. Step 5: Solve for x
    x = 28,889,472,898.92/260,838.66
  6. Step 6: Final answer
    x = 110,756.10

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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.