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Finding the Fourth Proportional to 373,999.47, 561,221.15 and 149,465.85

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Solution

The fourth proportional to 373,999.47, 561,221.15 and 149,465.85 is: 224,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,999.47 : 561,221.15 = 149,465.85 : x
  2. Step 2: Convert to fraction form
    373,999.47/561,221.15 = 149,465.85/x
  3. Step 3: Cross multiply
    373,999.47x = 561,221.15 × 149,465.85
  4. Step 4: Simplify right side
    373,999.47x = 83,883,395,475.40
  5. Step 5: Solve for x
    x = 83,883,395,475.40/373,999.47
  6. Step 6: Final answer
    x = 224,287.47

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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.