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Finding the Fourth Proportional to 309,044.88, 426,408.84 and 174,908.88

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Solution

The fourth proportional to 309,044.88, 426,408.84 and 174,908.88 is: 241,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,044.88 : 426,408.84 = 174,908.88 : x
  2. Step 2: Convert to fraction form
    309,044.88/426,408.84 = 174,908.88/x
  3. Step 3: Cross multiply
    309,044.88x = 426,408.84 × 174,908.88
  4. Step 4: Simplify right side
    309,044.88x = 74,582,692,626.50
  5. Step 5: Solve for x
    x = 74,582,692,626.50/309,044.88
  6. Step 6: Final answer
    x = 241,332.89

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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.