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Finding the Fourth Proportional to 277,817.55, 416,726.78 and 67,455.48

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Solution

The fourth proportional to 277,817.55, 416,726.78 and 67,455.48 is: 101,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,817.55 : 416,726.78 = 67,455.48 : x
  2. Step 2: Convert to fraction form
    277,817.55/416,726.78 = 67,455.48/x
  3. Step 3: Cross multiply
    277,817.55x = 416,726.78 × 67,455.48
  4. Step 4: Simplify right side
    277,817.55x = 28,110,506,199.20
  5. Step 5: Solve for x
    x = 28,110,506,199.20/277,817.55
  6. Step 6: Final answer
    x = 101,183.34

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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.