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Finding the Fourth Proportional to 212,641.88, 318,991.98 and 62,893.94

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Solution

The fourth proportional to 212,641.88, 318,991.98 and 62,893.94 is: 94,349.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,641.88 : 318,991.98 = 62,893.94 : x
  2. Step 2: Convert to fraction form
    212,641.88/318,991.98 = 62,893.94/x
  3. Step 3: Cross multiply
    212,641.88x = 318,991.98 × 62,893.94
  4. Step 4: Simplify right side
    212,641.88x = 20,062,662,450.60
  5. Step 5: Solve for x
    x = 20,062,662,450.60/212,641.88
  6. Step 6: Final answer
    x = 94,349.53

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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.