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Finding the Fourth Proportional to 373,128.78, 559,690.58 and 106,889.60

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Solution

The fourth proportional to 373,128.78, 559,690.58 and 106,889.60 is: 160,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,128.78 : 559,690.58 = 106,889.60 : x
  2. Step 2: Convert to fraction form
    373,128.78/559,690.58 = 106,889.60/x
  3. Step 3: Cross multiply
    373,128.78x = 559,690.58 × 106,889.60
  4. Step 4: Simplify right side
    373,128.78x = 59,825,102,219.97
  5. Step 5: Solve for x
    x = 59,825,102,219.97/373,128.78
  6. Step 6: Final answer
    x = 160,333.66

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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.