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Finding the Fourth Proportional to 89,344.80, 122,329.80 and 89,344.80

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Solution

The fourth proportional to 89,344.80, 122,329.80 and 89,344.80 is: 122,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,344.80 : 122,329.80 = 89,344.80 : x
  2. Step 2: Convert to fraction form
    89,344.80/122,329.80 = 89,344.80/x
  3. Step 3: Cross multiply
    89,344.80x = 122,329.80 × 89,344.80
  4. Step 4: Simplify right side
    89,344.80x = 10,929,531,515.04
  5. Step 5: Solve for x
    x = 10,929,531,515.04/89,344.80
  6. Step 6: Final answer
    x = 122,329.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.