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Finding the Fourth Proportional to 347,509.50, 479,559.87 and 196,606.50

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Solution

The fourth proportional to 347,509.50, 479,559.87 and 196,606.50 is: 271,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,509.50 : 479,559.87 = 196,606.50 : x
  2. Step 2: Convert to fraction form
    347,509.50/479,559.87 = 196,606.50/x
  3. Step 3: Cross multiply
    347,509.50x = 479,559.87 × 196,606.50
  4. Step 4: Simplify right side
    347,509.50x = 94,284,587,581.16
  5. Step 5: Solve for x
    x = 94,284,587,581.16/347,509.50
  6. Step 6: Final answer
    x = 271,315.14

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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.