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Finding the Fourth Proportional to 209,611.94, 314,024.22 and 162,635.18

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Solution

The fourth proportional to 209,611.94, 314,024.22 and 162,635.18 is: 243,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,611.94 : 314,024.22 = 162,635.18 : x
  2. Step 2: Convert to fraction form
    209,611.94/314,024.22 = 162,635.18/x
  3. Step 3: Cross multiply
    209,611.94x = 314,024.22 × 162,635.18
  4. Step 4: Simplify right side
    209,611.94x = 51,071,383,973.94
  5. Step 5: Solve for x
    x = 51,071,383,973.94/209,611.94
  6. Step 6: Final answer
    x = 243,647.31

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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.