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Finding the Fourth Proportional to 114,636.88, 158,198.80 and 66,880.98

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Solution

The fourth proportional to 114,636.88, 158,198.80 and 66,880.98 is: 92,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,636.88 : 158,198.80 = 66,880.98 : x
  2. Step 2: Convert to fraction form
    114,636.88/158,198.80 = 66,880.98/x
  3. Step 3: Cross multiply
    114,636.88x = 158,198.80 × 66,880.98
  4. Step 4: Simplify right side
    114,636.88x = 10,580,490,778.82
  5. Step 5: Solve for x
    x = 10,580,490,778.82/114,636.88
  6. Step 6: Final answer
    x = 92,295.70

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1.5x scale

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.