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Finding the Fourth Proportional to 74,467.60, 111,721.20 and 32,329.60

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Solution

The fourth proportional to 74,467.60, 111,721.20 and 32,329.60 is: 48,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,467.60 : 111,721.20 = 32,329.60 : x
  2. Step 2: Convert to fraction form
    74,467.60/111,721.20 = 32,329.60/x
  3. Step 3: Cross multiply
    74,467.60x = 111,721.20 × 32,329.60
  4. Step 4: Simplify right side
    74,467.60x = 3,611,901,707.52
  5. Step 5: Solve for x
    x = 3,611,901,707.52/74,467.60
  6. Step 6: Final answer
    x = 48,503.00

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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.