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Finding the Fourth Proportional to 51,676.45, 77,448.59 and 44,985.61

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Solution

The fourth proportional to 51,676.45, 77,448.59 and 44,985.61 is: 67,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,676.45 : 77,448.59 = 44,985.61 : x
  2. Step 2: Convert to fraction form
    51,676.45/77,448.59 = 44,985.61/x
  3. Step 3: Cross multiply
    51,676.45x = 77,448.59 × 44,985.61
  4. Step 4: Simplify right side
    51,676.45x = 3,484,072,105.37
  5. Step 5: Solve for x
    x = 3,484,072,105.37/51,676.45
  6. Step 6: Final answer
    x = 67,420.89

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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.