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Finding the Fourth Proportional to 277,798.75, 416,695.09 and 67,436.69

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Solution

The fourth proportional to 277,798.75, 416,695.09 and 67,436.69 is: 101,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,798.75 : 416,695.09 = 67,436.69 : x
  2. Step 2: Convert to fraction form
    277,798.75/416,695.09 = 67,436.69/x
  3. Step 3: Cross multiply
    277,798.75x = 416,695.09 × 67,436.69
  4. Step 4: Simplify right side
    277,798.75x = 28,100,535,188.19
  5. Step 5: Solve for x
    x = 28,100,535,188.19/277,798.75
  6. Step 6: Final answer
    x = 101,154.29

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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.