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Finding the Fourth Proportional to 281,139.86, 388,035.28 and 194,047.24

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Solution

The fourth proportional to 281,139.86, 388,035.28 and 194,047.24 is: 267,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,139.86 : 388,035.28 = 194,047.24 : x
  2. Step 2: Convert to fraction form
    281,139.86/388,035.28 = 194,047.24/x
  3. Step 3: Cross multiply
    281,139.86x = 388,035.28 × 194,047.24
  4. Step 4: Simplify right side
    281,139.86x = 75,297,175,106.63
  5. Step 5: Solve for x
    x = 75,297,175,106.63/281,139.86
  6. Step 6: Final answer
    x = 267,828.17

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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.