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Finding the Fourth Proportional to 192,891.78, 266,147.64 and 116,423.46

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Solution

The fourth proportional to 192,891.78, 266,147.64 and 116,423.46 is: 160,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,891.78 : 266,147.64 = 116,423.46 : x
  2. Step 2: Convert to fraction form
    192,891.78/266,147.64 = 116,423.46/x
  3. Step 3: Cross multiply
    192,891.78x = 266,147.64 × 116,423.46
  4. Step 4: Simplify right side
    192,891.78x = 30,985,829,119.63
  5. Step 5: Solve for x
    x = 30,985,829,119.63/192,891.78
  6. Step 6: Final answer
    x = 160,638.41

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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.