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Finding the Fourth Proportional to 74,994.48, 112,491.72 and 51,768.54

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Solution

The fourth proportional to 74,994.48, 112,491.72 and 51,768.54 is: 77,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,994.48 : 112,491.72 = 51,768.54 : x
  2. Step 2: Convert to fraction form
    74,994.48/112,491.72 = 51,768.54/x
  3. Step 3: Cross multiply
    74,994.48x = 112,491.72 × 51,768.54
  4. Step 4: Simplify right side
    74,994.48x = 5,823,532,106.49
  5. Step 5: Solve for x
    x = 5,823,532,106.49/74,994.48
  6. Step 6: Final answer
    x = 77,652.81

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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.