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Finding the Fourth Proportional to 61,289.88, 92,012.58 and 52,114.20

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Solution

The fourth proportional to 61,289.88, 92,012.58 and 52,114.20 is: 78,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,289.88 : 92,012.58 = 52,114.20 : x
  2. Step 2: Convert to fraction form
    61,289.88/92,012.58 = 52,114.20/x
  3. Step 3: Cross multiply
    61,289.88x = 92,012.58 × 52,114.20
  4. Step 4: Simplify right side
    61,289.88x = 4,795,161,996.64
  5. Step 5: Solve for x
    x = 4,795,161,996.64/61,289.88
  6. Step 6: Final answer
    x = 78,237.42

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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.