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Finding the Fourth Proportional to 79,225.94, 118,758.81 and 49,664.48

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Solution

The fourth proportional to 79,225.94, 118,758.81 and 49,664.48 is: 74,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.94 : 118,758.81 = 49,664.48 : x
  2. Step 2: Convert to fraction form
    79,225.94/118,758.81 = 49,664.48/x
  3. Step 3: Cross multiply
    79,225.94x = 118,758.81 × 49,664.48
  4. Step 4: Simplify right side
    79,225.94x = 5,898,094,544.07
  5. Step 5: Solve for x
    x = 5,898,094,544.07/79,225.94
  6. Step 6: Final answer
    x = 74,446.51

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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.