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Finding the Fourth Proportional to 79,198.79, 118,815.92 and 26,606.84

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Solution

The fourth proportional to 79,198.79, 118,815.92 and 26,606.84 is: 39,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.79 : 118,815.92 = 26,606.84 : x
  2. Step 2: Convert to fraction form
    79,198.79/118,815.92 = 26,606.84/x
  3. Step 3: Cross multiply
    79,198.79x = 118,815.92 × 26,606.84
  4. Step 4: Simplify right side
    79,198.79x = 3,161,316,172.89
  5. Step 5: Solve for x
    x = 3,161,316,172.89/79,198.79
  6. Step 6: Final answer
    x = 39,916.22

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1.5x scale

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.