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Finding the Fourth Proportional to 229,080.40, 343,037.40 and 218,582.80

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Solution

The fourth proportional to 229,080.40, 343,037.40 and 218,582.80 is: 327,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,080.40 : 343,037.40 = 218,582.80 : x
  2. Step 2: Convert to fraction form
    229,080.40/343,037.40 = 218,582.80/x
  3. Step 3: Cross multiply
    229,080.40x = 343,037.40 × 218,582.80
  4. Step 4: Simplify right side
    229,080.40x = 74,982,075,396.72
  5. Step 5: Solve for x
    x = 74,982,075,396.72/229,080.40
  6. Step 6: Final answer
    x = 327,317.73

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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.