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Finding the Fourth Proportional to 274,279.90, 411,271.92 and 124,438.43

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Solution

The fourth proportional to 274,279.90, 411,271.92 and 124,438.43 is: 186,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,279.90 : 411,271.92 = 124,438.43 : x
  2. Step 2: Convert to fraction form
    274,279.90/411,271.92 = 124,438.43/x
  3. Step 3: Cross multiply
    274,279.90x = 411,271.92 × 124,438.43
  4. Step 4: Simplify right side
    274,279.90x = 51,178,032,027.89
  5. Step 5: Solve for x
    x = 51,178,032,027.89/274,279.90
  6. Step 6: Final answer
    x = 186,590.53

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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.