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Finding the Fourth Proportional to 238,515.05, 357,770.05 and 61,020.65

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Solution

The fourth proportional to 238,515.05, 357,770.05 and 61,020.65 is: 91,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,515.05 : 357,770.05 = 61,020.65 : x
  2. Step 2: Convert to fraction form
    238,515.05/357,770.05 = 61,020.65/x
  3. Step 3: Cross multiply
    238,515.05x = 357,770.05 × 61,020.65
  4. Step 4: Simplify right side
    238,515.05x = 21,831,361,001.53
  5. Step 5: Solve for x
    x = 21,831,361,001.53/238,515.05
  6. Step 6: Final answer
    x = 91,530.33

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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.