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Finding the Fourth Proportional to 107,138.70, 160,598.70 and 62,742.60

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Solution

The fourth proportional to 107,138.70, 160,598.70 and 62,742.60 is: 94,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.70 : 160,598.70 = 62,742.60 : x
  2. Step 2: Convert to fraction form
    107,138.70/160,598.70 = 62,742.60/x
  3. Step 3: Cross multiply
    107,138.70x = 160,598.70 × 62,742.60
  4. Step 4: Simplify right side
    107,138.70x = 10,076,379,994.62
  5. Step 5: Solve for x
    x = 10,076,379,994.62/107,138.70
  6. Step 6: Final answer
    x = 94,049.86

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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.