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Finding the Fourth Proportional to 49,697.40, 74,586.90 and 49,308.60

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Solution

The fourth proportional to 49,697.40, 74,586.90 and 49,308.60 is: 74,003.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,697.40 : 74,586.90 = 49,308.60 : x
  2. Step 2: Convert to fraction form
    49,697.40/74,586.90 = 49,308.60/x
  3. Step 3: Cross multiply
    49,697.40x = 74,586.90 × 49,308.60
  4. Step 4: Simplify right side
    49,697.40x = 3,677,775,617.34
  5. Step 5: Solve for x
    x = 3,677,775,617.34/49,697.40
  6. Step 6: Final answer
    x = 74,003.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.