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Finding the Fourth Proportional to 228,571.93, 342,880.44 and 78,792.49

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Solution

The fourth proportional to 228,571.93, 342,880.44 and 78,792.49 is: 118,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,571.93 : 342,880.44 = 78,792.49 : x
  2. Step 2: Convert to fraction form
    228,571.93/342,880.44 = 78,792.49/x
  3. Step 3: Cross multiply
    228,571.93x = 342,880.44 × 78,792.49
  4. Step 4: Simplify right side
    228,571.93x = 27,016,403,639.90
  5. Step 5: Solve for x
    x = 27,016,403,639.90/228,571.93
  6. Step 6: Final answer
    x = 118,196.51

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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.