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Finding the Fourth Proportional to 347,195.21, 520,684.72 and 122,503.01

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Solution

The fourth proportional to 347,195.21, 520,684.72 and 122,503.01 is: 183,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,195.21 : 520,684.72 = 122,503.01 : x
  2. Step 2: Convert to fraction form
    347,195.21/520,684.72 = 122,503.01/x
  3. Step 3: Cross multiply
    347,195.21x = 520,684.72 × 122,503.01
  4. Step 4: Simplify right side
    347,195.21x = 63,785,442,551.33
  5. Step 5: Solve for x
    x = 63,785,442,551.33/347,195.21
  6. Step 6: Final answer
    x = 183,716.37

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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.