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Finding the Fourth Proportional to 91,674.65, 126,508.74 and 50,838.54

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Solution

The fourth proportional to 91,674.65, 126,508.74 and 50,838.54 is: 70,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.65 : 126,508.74 = 50,838.54 : x
  2. Step 2: Convert to fraction form
    91,674.65/126,508.74 = 50,838.54/x
  3. Step 3: Cross multiply
    91,674.65x = 126,508.74 × 50,838.54
  4. Step 4: Simplify right side
    91,674.65x = 6,431,519,638.84
  5. Step 5: Solve for x
    x = 6,431,519,638.84/91,674.65
  6. Step 6: Final answer
    x = 70,155.93

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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.