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Finding the Fourth Proportional to 251,846.55, 377,838.81 and 74,353.50

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Solution

The fourth proportional to 251,846.55, 377,838.81 and 74,353.50 is: 111,550.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,846.55 : 377,838.81 = 74,353.50 : x
  2. Step 2: Convert to fraction form
    251,846.55/377,838.81 = 74,353.50/x
  3. Step 3: Cross multiply
    251,846.55x = 377,838.81 × 74,353.50
  4. Step 4: Simplify right side
    251,846.55x = 28,093,637,959.34
  5. Step 5: Solve for x
    x = 28,093,637,959.34/251,846.55
  6. Step 6: Final answer
    x = 111,550.62

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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.