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Finding the Fourth Proportional to 224,615.72, 309,967.62 and 124,014.44

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Solution

The fourth proportional to 224,615.72, 309,967.62 and 124,014.44 is: 171,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,615.72 : 309,967.62 = 124,014.44 : x
  2. Step 2: Convert to fraction form
    224,615.72/309,967.62 = 124,014.44/x
  3. Step 3: Cross multiply
    224,615.72x = 309,967.62 × 124,014.44
  4. Step 4: Simplify right side
    224,615.72x = 38,440,460,812.43
  5. Step 5: Solve for x
    x = 38,440,460,812.43/224,615.72
  6. Step 6: Final answer
    x = 171,138.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.