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Finding the Fourth Proportional to 104,661.60, 156,985.20 and 33,583.20

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Solution

The fourth proportional to 104,661.60, 156,985.20 and 33,583.20 is: 50,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.60 : 156,985.20 = 33,583.20 : x
  2. Step 2: Convert to fraction form
    104,661.60/156,985.20 = 33,583.20/x
  3. Step 3: Cross multiply
    104,661.60x = 156,985.20 × 33,583.20
  4. Step 4: Simplify right side
    104,661.60x = 5,272,065,368.64
  5. Step 5: Solve for x
    x = 5,272,065,368.64/104,661.60
  6. Step 6: Final answer
    x = 50,372.49

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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.