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Finding the Fourth Proportional to 201,806.94, 278,493.60 and 116,973.20

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Solution

The fourth proportional to 201,806.94, 278,493.60 and 116,973.20 is: 161,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,806.94 : 278,493.60 = 116,973.20 : x
  2. Step 2: Convert to fraction form
    201,806.94/278,493.60 = 116,973.20/x
  3. Step 3: Cross multiply
    201,806.94x = 278,493.60 × 116,973.20
  4. Step 4: Simplify right side
    201,806.94x = 32,576,287,571.52
  5. Step 5: Solve for x
    x = 32,576,287,571.52/201,806.94
  6. Step 6: Final answer
    x = 161,423.03

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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.