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Finding the Fourth Proportional to 49,480.40, 74,220.60 and 37,670.60

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Solution

The fourth proportional to 49,480.40, 74,220.60 and 37,670.60 is: 56,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,480.40 : 74,220.60 = 37,670.60 : x
  2. Step 2: Convert to fraction form
    49,480.40/74,220.60 = 37,670.60/x
  3. Step 3: Cross multiply
    49,480.40x = 74,220.60 × 37,670.60
  4. Step 4: Simplify right side
    49,480.40x = 2,795,934,534.36
  5. Step 5: Solve for x
    x = 2,795,934,534.36/49,480.40
  6. Step 6: Final answer
    x = 56,505.90

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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.