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Finding the Fourth Proportional to 281,093.64, 421,696.94 and 103,601.64

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Solution

The fourth proportional to 281,093.64, 421,696.94 and 103,601.64 is: 155,423.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,093.64 : 421,696.94 = 103,601.64 : x
  2. Step 2: Convert to fraction form
    281,093.64/421,696.94 = 103,601.64/x
  3. Step 3: Cross multiply
    281,093.64x = 421,696.94 × 103,601.64
  4. Step 4: Simplify right side
    281,093.64x = 43,688,494,566.98
  5. Step 5: Solve for x
    x = 43,688,494,566.98/281,093.64
  6. Step 6: Final answer
    x = 155,423.28

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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.