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Finding the Fourth Proportional to 71,049.71, 106,303.90 and 63,176.51

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Solution

The fourth proportional to 71,049.71, 106,303.90 and 63,176.51 is: 94,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,049.71 : 106,303.90 = 63,176.51 : x
  2. Step 2: Convert to fraction form
    71,049.71/106,303.90 = 63,176.51/x
  3. Step 3: Cross multiply
    71,049.71x = 106,303.90 × 63,176.51
  4. Step 4: Simplify right side
    71,049.71x = 6,715,909,401.39
  5. Step 5: Solve for x
    x = 6,715,909,401.39/71,049.71
  6. Step 6: Final answer
    x = 94,524.09

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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.