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Finding the Fourth Proportional to 347,222.40, 520,833.60 and 125,554.56

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Solution

The fourth proportional to 347,222.40, 520,833.60 and 125,554.56 is: 188,331.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,222.40 : 520,833.60 = 125,554.56 : x
  2. Step 2: Convert to fraction form
    347,222.40/520,833.60 = 125,554.56/x
  3. Step 3: Cross multiply
    347,222.40x = 520,833.60 × 125,554.56
  4. Step 4: Simplify right side
    347,222.40x = 65,393,033,481.22
  5. Step 5: Solve for x
    x = 65,393,033,481.22/347,222.40
  6. Step 6: Final answer
    x = 188,331.84

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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.