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Finding the Fourth Proportional to 212,662.97, 319,056.72 and 62,907.25

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Solution

The fourth proportional to 212,662.97, 319,056.72 and 62,907.25 is: 94,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,662.97 : 319,056.72 = 62,907.25 : x
  2. Step 2: Convert to fraction form
    212,662.97/319,056.72 = 62,907.25/x
  3. Step 3: Cross multiply
    212,662.97x = 319,056.72 × 62,907.25
  4. Step 4: Simplify right side
    212,662.97x = 20,070,979,489.84
  5. Step 5: Solve for x
    x = 20,070,979,489.84/212,662.97
  6. Step 6: Final answer
    x = 94,379.29

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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.