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Finding the Fourth Proportional to 415,907.33, 623,860.83 and 163,306.67

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Solution

The fourth proportional to 415,907.33, 623,860.83 and 163,306.67 is: 244,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,907.33 : 623,860.83 = 163,306.67 : x
  2. Step 2: Convert to fraction form
    415,907.33/623,860.83 = 163,306.67/x
  3. Step 3: Cross multiply
    415,907.33x = 623,860.83 × 163,306.67
  4. Step 4: Simplify right side
    415,907.33x = 101,880,631,571.43
  5. Step 5: Solve for x
    x = 101,880,631,571.43/415,907.33
  6. Step 6: Final answer
    x = 244,959.94

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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.