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Finding the Fourth Proportional to 122,385.60, 183,567.60 and 33,631.20

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Solution

The fourth proportional to 122,385.60, 183,567.60 and 33,631.20 is: 50,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,385.60 : 183,567.60 = 33,631.20 : x
  2. Step 2: Convert to fraction form
    122,385.60/183,567.60 = 33,631.20/x
  3. Step 3: Cross multiply
    122,385.60x = 183,567.60 × 33,631.20
  4. Step 4: Simplify right side
    122,385.60x = 6,173,598,669.12
  5. Step 5: Solve for x
    x = 6,173,598,669.12/122,385.60
  6. Step 6: Final answer
    x = 50,443.83

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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.