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Finding the Fourth Proportional to 79,323.81, 118,923.29 and 39,315.27

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Solution

The fourth proportional to 79,323.81, 118,923.29 and 39,315.27 is: 58,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,323.81 : 118,923.29 = 39,315.27 : x
  2. Step 2: Convert to fraction form
    79,323.81/118,923.29 = 39,315.27/x
  3. Step 3: Cross multiply
    79,323.81x = 118,923.29 × 39,315.27
  4. Step 4: Simplify right side
    79,323.81x = 4,675,501,652.46
  5. Step 5: Solve for x
    x = 4,675,501,652.46/79,323.81
  6. Step 6: Final answer
    x = 58,941.97

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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.