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Finding the Fourth Proportional to 137,466.60, 206,199.90 and 122,951.40

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Solution

The fourth proportional to 137,466.60, 206,199.90 and 122,951.40 is: 184,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,466.60 : 206,199.90 = 122,951.40 : x
  2. Step 2: Convert to fraction form
    137,466.60/206,199.90 = 122,951.40/x
  3. Step 3: Cross multiply
    137,466.60x = 206,199.90 × 122,951.40
  4. Step 4: Simplify right side
    137,466.60x = 25,352,566,384.86
  5. Step 5: Solve for x
    x = 25,352,566,384.86/137,466.60
  6. Step 6: Final answer
    x = 184,427.10

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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.