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Finding the Fourth Proportional to 274,448.64, 411,393.60 and 124,795.20

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Solution

The fourth proportional to 274,448.64, 411,393.60 and 124,795.20 is: 187,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,448.64 : 411,393.60 = 124,795.20 : x
  2. Step 2: Convert to fraction form
    274,448.64/411,393.60 = 124,795.20/x
  3. Step 3: Cross multiply
    274,448.64x = 411,393.60 × 124,795.20
  4. Step 4: Simplify right side
    274,448.64x = 51,339,946,590.72
  5. Step 5: Solve for x
    x = 51,339,946,590.72/274,448.64
  6. Step 6: Final answer
    x = 187,065.77

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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.