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Finding the Fourth Proportional to 281,120.80, 421,738.80 and 94,266.40

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Solution

The fourth proportional to 281,120.80, 421,738.80 and 94,266.40 is: 141,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,120.80 : 421,738.80 = 94,266.40 : x
  2. Step 2: Convert to fraction form
    281,120.80/421,738.80 = 94,266.40/x
  3. Step 3: Cross multiply
    281,120.80x = 421,738.80 × 94,266.40
  4. Step 4: Simplify right side
    281,120.80x = 39,755,798,416.32
  5. Step 5: Solve for x
    x = 39,755,798,416.32/281,120.80
  6. Step 6: Final answer
    x = 141,418.91

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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.