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Finding the Fourth Proportional to 247,274.37, 370,907.49 and 78,792.42

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Solution

The fourth proportional to 247,274.37, 370,907.49 and 78,792.42 is: 118,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,274.37 : 370,907.49 = 78,792.42 : x
  2. Step 2: Convert to fraction form
    247,274.37/370,907.49 = 78,792.42/x
  3. Step 3: Cross multiply
    247,274.37x = 370,907.49 × 78,792.42
  4. Step 4: Simplify right side
    247,274.37x = 29,224,698,733.23
  5. Step 5: Solve for x
    x = 29,224,698,733.23/247,274.37
  6. Step 6: Final answer
    x = 118,187.33

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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.