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Finding the Fourth Proportional to 133,360.12, 199,978.62 and 49,099.12

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Solution

The fourth proportional to 133,360.12, 199,978.62 and 49,099.12 is: 73,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,360.12 : 199,978.62 = 49,099.12 : x
  2. Step 2: Convert to fraction form
    133,360.12/199,978.62 = 49,099.12/x
  3. Step 3: Cross multiply
    133,360.12x = 199,978.62 × 49,099.12
  4. Step 4: Simplify right side
    133,360.12x = 9,818,774,260.81
  5. Step 5: Solve for x
    x = 9,818,774,260.81/133,360.12
  6. Step 6: Final answer
    x = 73,626.02

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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.