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Finding the Fourth Proportional to 139,024.44, 191,850.66 and 75,360.60

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Solution

The fourth proportional to 139,024.44, 191,850.66 and 75,360.60 is: 103,995.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,024.44 : 191,850.66 = 75,360.60 : x
  2. Step 2: Convert to fraction form
    139,024.44/191,850.66 = 75,360.60/x
  3. Step 3: Cross multiply
    139,024.44x = 191,850.66 × 75,360.60
  4. Step 4: Simplify right side
    139,024.44x = 14,457,980,848.00
  5. Step 5: Solve for x
    x = 14,457,980,848.00/139,024.44
  6. Step 6: Final answer
    x = 103,995.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.