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Finding the Fourth Proportional to 74,797.20, 112,044.60 and 46,630.80

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Solution

The fourth proportional to 74,797.20, 112,044.60 and 46,630.80 is: 69,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,797.20 : 112,044.60 = 46,630.80 : x
  2. Step 2: Convert to fraction form
    74,797.20/112,044.60 = 46,630.80/x
  3. Step 3: Cross multiply
    74,797.20x = 112,044.60 × 46,630.80
  4. Step 4: Simplify right side
    74,797.20x = 5,224,729,333.68
  5. Step 5: Solve for x
    x = 5,224,729,333.68/74,797.20
  6. Step 6: Final answer
    x = 69,851.94

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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.