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Finding the Fourth Proportional to 240,503.99, 331,842.83 and 143,693.32

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Solution

The fourth proportional to 240,503.99, 331,842.83 and 143,693.32 is: 198,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,503.99 : 331,842.83 = 143,693.32 : x
  2. Step 2: Convert to fraction form
    240,503.99/331,842.83 = 143,693.32/x
  3. Step 3: Cross multiply
    240,503.99x = 331,842.83 × 143,693.32
  4. Step 4: Simplify right side
    240,503.99x = 47,683,596,301.68
  5. Step 5: Solve for x
    x = 47,683,596,301.68/240,503.99
  6. Step 6: Final answer
    x = 198,265.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.