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Finding the Fourth Proportional to 347,321.80, 520,982.70 and 110,681.80

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Solution

The fourth proportional to 347,321.80, 520,982.70 and 110,681.80 is: 166,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,321.80 : 520,982.70 = 110,681.80 : x
  2. Step 2: Convert to fraction form
    347,321.80/520,982.70 = 110,681.80/x
  3. Step 3: Cross multiply
    347,321.80x = 520,982.70 × 110,681.80
  4. Step 4: Simplify right side
    347,321.80x = 57,663,303,004.86
  5. Step 5: Solve for x
    x = 57,663,303,004.86/347,321.80
  6. Step 6: Final answer
    x = 166,022.70

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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.