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Finding the Fourth Proportional to 79,295.99, 118,954.98 and 26,720.51

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Solution

The fourth proportional to 79,295.99, 118,954.98 and 26,720.51 is: 40,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.99 : 118,954.98 = 26,720.51 : x
  2. Step 2: Convert to fraction form
    79,295.99/118,954.98 = 26,720.51/x
  3. Step 3: Cross multiply
    79,295.99x = 118,954.98 × 26,720.51
  4. Step 4: Simplify right side
    79,295.99x = 3,178,537,137.86
  5. Step 5: Solve for x
    x = 3,178,537,137.86/79,295.99
  6. Step 6: Final answer
    x = 40,084.47

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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.