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Finding the Fourth Proportional to 373,223.40, 559,835.09 and 123,905.40

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Solution

The fourth proportional to 373,223.40, 559,835.09 and 123,905.40 is: 185,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,223.40 : 559,835.09 = 123,905.40 : x
  2. Step 2: Convert to fraction form
    373,223.40/559,835.09 = 123,905.40/x
  3. Step 3: Cross multiply
    373,223.40x = 559,835.09 × 123,905.40
  4. Step 4: Simplify right side
    373,223.40x = 69,366,587,341.78
  5. Step 5: Solve for x
    x = 69,366,587,341.78/373,223.40
  6. Step 6: Final answer
    x = 185,858.09

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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.