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Finding the Fourth Proportional to 340,883.41, 511,325.12 and 130,521.34

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Solution

The fourth proportional to 340,883.41, 511,325.12 and 130,521.34 is: 195,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,883.41 : 511,325.12 = 130,521.34 : x
  2. Step 2: Convert to fraction form
    340,883.41/511,325.12 = 130,521.34/x
  3. Step 3: Cross multiply
    340,883.41x = 511,325.12 × 130,521.34
  4. Step 4: Simplify right side
    340,883.41x = 66,738,839,838.06
  5. Step 5: Solve for x
    x = 66,738,839,838.06/340,883.41
  6. Step 6: Final answer
    x = 195,782.01

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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.