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Finding the Fourth Proportional to 74,487.94, 111,708.22 and 24,558.74

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Solution

The fourth proportional to 74,487.94, 111,708.22 and 24,558.74 is: 36,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,487.94 : 111,708.22 = 24,558.74 : x
  2. Step 2: Convert to fraction form
    74,487.94/111,708.22 = 24,558.74/x
  3. Step 3: Cross multiply
    74,487.94x = 111,708.22 × 24,558.74
  4. Step 4: Simplify right side
    74,487.94x = 2,743,413,130.84
  5. Step 5: Solve for x
    x = 2,743,413,130.84/74,487.94
  6. Step 6: Final answer
    x = 36,830.30

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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.