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Finding the Fourth Proportional to 367,638.60, 551,457.90 and 157,297.80

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Solution

The fourth proportional to 367,638.60, 551,457.90 and 157,297.80 is: 235,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,638.60 : 551,457.90 = 157,297.80 : x
  2. Step 2: Convert to fraction form
    367,638.60/551,457.90 = 157,297.80/x
  3. Step 3: Cross multiply
    367,638.60x = 551,457.90 × 157,297.80
  4. Step 4: Simplify right side
    367,638.60x = 86,743,114,462.62
  5. Step 5: Solve for x
    x = 86,743,114,462.62/367,638.60
  6. Step 6: Final answer
    x = 235,946.70

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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.