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Finding the Fourth Proportional to 367,656.09, 551,311.90 and 154,378.48

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Solution

The fourth proportional to 367,656.09, 551,311.90 and 154,378.48 is: 231,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,656.09 : 551,311.90 = 154,378.48 : x
  2. Step 2: Convert to fraction form
    367,656.09/551,311.90 = 154,378.48/x
  3. Step 3: Cross multiply
    367,656.09x = 551,311.90 × 154,378.48
  4. Step 4: Simplify right side
    367,656.09x = 85,110,693,127.91
  5. Step 5: Solve for x
    x = 85,110,693,127.91/367,656.09
  6. Step 6: Final answer
    x = 231,495.40

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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.