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Finding the Fourth Proportional to 79,223.16, 118,851.15 and 26,631.28

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Solution

The fourth proportional to 79,223.16, 118,851.15 and 26,631.28 is: 39,952.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,223.16 : 118,851.15 = 26,631.28 : x
  2. Step 2: Convert to fraction form
    79,223.16/118,851.15 = 26,631.28/x
  3. Step 3: Cross multiply
    79,223.16x = 118,851.15 × 26,631.28
  4. Step 4: Simplify right side
    79,223.16x = 3,165,158,352.60
  5. Step 5: Solve for x
    x = 3,165,158,352.60/79,223.16
  6. Step 6: Final answer
    x = 39,952.44

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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.