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Finding the Fourth Proportional to 153,930.60, 230,895.90 and 122,826.60

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Solution

The fourth proportional to 153,930.60, 230,895.90 and 122,826.60 is: 184,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,930.60 : 230,895.90 = 122,826.60 : x
  2. Step 2: Convert to fraction form
    153,930.60/230,895.90 = 122,826.60/x
  3. Step 3: Cross multiply
    153,930.60x = 230,895.90 × 122,826.60
  4. Step 4: Simplify right side
    153,930.60x = 28,360,158,350.94
  5. Step 5: Solve for x
    x = 28,360,158,350.94/153,930.60
  6. Step 6: Final answer
    x = 184,239.90

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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.