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Finding the Fourth Proportional to 128,604.90, 192,674.06 and 94,954.26

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Solution

The fourth proportional to 128,604.90, 192,674.06 and 94,954.26 is: 142,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,604.90 : 192,674.06 = 94,954.26 : x
  2. Step 2: Convert to fraction form
    128,604.90/192,674.06 = 94,954.26/x
  3. Step 3: Cross multiply
    128,604.90x = 192,674.06 × 94,954.26
  4. Step 4: Simplify right side
    128,604.90x = 18,295,222,788.50
  5. Step 5: Solve for x
    x = 18,295,222,788.50/128,604.90
  6. Step 6: Final answer
    x = 142,259.14

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1.5x scale

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.