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Finding the Fourth Proportional to 71,752.50, 99,044.37 and 49,461.30

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Solution

The fourth proportional to 71,752.50, 99,044.37 and 49,461.30 is: 68,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,752.50 : 99,044.37 = 49,461.30 : x
  2. Step 2: Convert to fraction form
    71,752.50/99,044.37 = 49,461.30/x
  3. Step 3: Cross multiply
    71,752.50x = 99,044.37 × 49,461.30
  4. Step 4: Simplify right side
    71,752.50x = 4,898,863,297.88
  5. Step 5: Solve for x
    x = 4,898,863,297.88/71,752.50
  6. Step 6: Final answer
    x = 68,274.46

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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.