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Finding the Fourth Proportional to 440,722.99, 661,066 and 141,196.94

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Solution

The fourth proportional to 440,722.99, 661,066 and 141,196.94 is: 211,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,722.99 : 661,066 = 141,196.94 : x
  2. Step 2: Convert to fraction form
    440,722.99/661,066 = 141,196.94/x
  3. Step 3: Cross multiply
    440,722.99x = 661,066 × 141,196.94
  4. Step 4: Simplify right side
    440,722.99x = 93,340,496,338.04
  5. Step 5: Solve for x
    x = 93,340,496,338.04/440,722.99
  6. Step 6: Final answer
    x = 211,789.49

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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.