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Finding the Fourth Proportional to 367,466.80, 551,070.60 and 130,817.20

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Solution

The fourth proportional to 367,466.80, 551,070.60 and 130,817.20 is: 196,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,466.80 : 551,070.60 = 130,817.20 : x
  2. Step 2: Convert to fraction form
    367,466.80/551,070.60 = 130,817.20/x
  3. Step 3: Cross multiply
    367,466.80x = 551,070.60 × 130,817.20
  4. Step 4: Simplify right side
    367,466.80x = 72,089,512,894.32
  5. Step 5: Solve for x
    x = 72,089,512,894.32/367,466.80
  6. Step 6: Final answer
    x = 196,179.66

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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.