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Finding the Fourth Proportional to 229,266.40, 343,316.40 and 218,768.80

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Solution

The fourth proportional to 229,266.40, 343,316.40 and 218,768.80 is: 327,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,266.40 : 343,316.40 = 218,768.80 : x
  2. Step 2: Convert to fraction form
    229,266.40/343,316.40 = 218,768.80/x
  3. Step 3: Cross multiply
    229,266.40x = 343,316.40 × 218,768.80
  4. Step 4: Simplify right side
    229,266.40x = 75,106,916,848.32
  5. Step 5: Solve for x
    x = 75,106,916,848.32/229,266.40
  6. Step 6: Final answer
    x = 327,596.70

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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.