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Finding the Fourth Proportional to 207,486.22, 311,117.94 and 65,304.88

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Solution

The fourth proportional to 207,486.22, 311,117.94 and 65,304.88 is: 97,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,486.22 : 311,117.94 = 65,304.88 : x
  2. Step 2: Convert to fraction form
    207,486.22/311,117.94 = 65,304.88/x
  3. Step 3: Cross multiply
    207,486.22x = 311,117.94 × 65,304.88
  4. Step 4: Simplify right side
    207,486.22x = 20,317,519,737.55
  5. Step 5: Solve for x
    x = 20,317,519,737.55/207,486.22
  6. Step 6: Final answer
    x = 97,922.26

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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.