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Finding the Fourth Proportional to 274,437.20, 411,480.60 and 116,584.40

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Solution

The fourth proportional to 274,437.20, 411,480.60 and 116,584.40 is: 174,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,437.20 : 411,480.60 = 116,584.40 : x
  2. Step 2: Convert to fraction form
    274,437.20/411,480.60 = 116,584.40/x
  3. Step 3: Cross multiply
    274,437.20x = 411,480.60 × 116,584.40
  4. Step 4: Simplify right side
    274,437.20x = 47,972,218,862.64
  5. Step 5: Solve for x
    x = 47,972,218,862.64/274,437.20
  6. Step 6: Final answer
    x = 174,802.17

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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.