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Finding the Fourth Proportional to 53,176.88, 79,765.44 and 49,929.20

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Solution

The fourth proportional to 53,176.88, 79,765.44 and 49,929.20 is: 74,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,176.88 : 79,765.44 = 49,929.20 : x
  2. Step 2: Convert to fraction form
    53,176.88/79,765.44 = 49,929.20/x
  3. Step 3: Cross multiply
    53,176.88x = 79,765.44 × 49,929.20
  4. Step 4: Simplify right side
    53,176.88x = 3,982,624,606.85
  5. Step 5: Solve for x
    x = 3,982,624,606.85/53,176.88
  6. Step 6: Final answer
    x = 74,893.91

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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.