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Finding the Fourth Proportional to 367,776.64, 551,666.88 and 146,161.28

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Solution

The fourth proportional to 367,776.64, 551,666.88 and 146,161.28 is: 219,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,776.64 : 551,666.88 = 146,161.28 : x
  2. Step 2: Convert to fraction form
    367,776.64/551,666.88 = 146,161.28/x
  3. Step 3: Cross multiply
    367,776.64x = 551,666.88 × 146,161.28
  4. Step 4: Simplify right side
    367,776.64x = 80,632,337,314.41
  5. Step 5: Solve for x
    x = 80,632,337,314.41/367,776.64
  6. Step 6: Final answer
    x = 219,242.68

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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.