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Finding the Fourth Proportional to 231,804.40, 347,706.60 and 74,048.80

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Solution

The fourth proportional to 231,804.40, 347,706.60 and 74,048.80 is: 111,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,804.40 : 347,706.60 = 74,048.80 : x
  2. Step 2: Convert to fraction form
    231,804.40/347,706.60 = 74,048.80/x
  3. Step 3: Cross multiply
    231,804.40x = 347,706.60 × 74,048.80
  4. Step 4: Simplify right side
    231,804.40x = 25,747,256,482.08
  5. Step 5: Solve for x
    x = 25,747,256,482.08/231,804.40
  6. Step 6: Final answer
    x = 111,073.20

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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.