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Finding the Fourth Proportional to 122,969.70, 184,540.95 and 52,899.30

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Solution

The fourth proportional to 122,969.70, 184,540.95 and 52,899.30 is: 79,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,969.70 : 184,540.95 = 52,899.30 : x
  2. Step 2: Convert to fraction form
    122,969.70/184,540.95 = 52,899.30/x
  3. Step 3: Cross multiply
    122,969.70x = 184,540.95 × 52,899.30
  4. Step 4: Simplify right side
    122,969.70x = 9,762,087,076.34
  5. Step 5: Solve for x
    x = 9,762,087,076.34/122,969.70
  6. Step 6: Final answer
    x = 79,386.12

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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.