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Finding the Fourth Proportional to 347,644.26, 521,700.12 and 123,003.80

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Solution

The fourth proportional to 347,644.26, 521,700.12 and 123,003.80 is: 184,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,644.26 : 521,700.12 = 123,003.80 : x
  2. Step 2: Convert to fraction form
    347,644.26/521,700.12 = 123,003.80/x
  3. Step 3: Cross multiply
    347,644.26x = 521,700.12 × 123,003.80
  4. Step 4: Simplify right side
    347,644.26x = 64,171,097,220.46
  5. Step 5: Solve for x
    x = 64,171,097,220.46/347,644.26
  6. Step 6: Final answer
    x = 184,588.40

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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.