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Finding the Fourth Proportional to 277,617.60, 416,364.08 and 127,713.92

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Solution

The fourth proportional to 277,617.60, 416,364.08 and 127,713.92 is: 191,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,617.60 : 416,364.08 = 127,713.92 : x
  2. Step 2: Convert to fraction form
    277,617.60/416,364.08 = 127,713.92/x
  3. Step 3: Cross multiply
    277,617.60x = 416,364.08 × 127,713.92
  4. Step 4: Simplify right side
    277,617.60x = 53,175,488,803.99
  5. Step 5: Solve for x
    x = 53,175,488,803.99/277,617.60
  6. Step 6: Final answer
    x = 191,542.21

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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.