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Finding the Fourth Proportional to 277,615.60, 416,361.08 and 127,711.92

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Solution

The fourth proportional to 277,615.60, 416,361.08 and 127,711.92 is: 191,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,615.60 : 416,361.08 = 127,711.92 : x
  2. Step 2: Convert to fraction form
    277,615.60/416,361.08 = 127,711.92/x
  3. Step 3: Cross multiply
    277,615.60x = 416,361.08 × 127,711.92
  4. Step 4: Simplify right side
    277,615.60x = 53,174,272,940.07
  5. Step 5: Solve for x
    x = 53,174,272,940.07/277,615.60
  6. Step 6: Final answer
    x = 191,539.21

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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.