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Finding the Fourth Proportional to 317,040.89, 437,534.46 and 188,055.88

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Solution

The fourth proportional to 317,040.89, 437,534.46 and 188,055.88 is: 259,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,040.89 : 437,534.46 = 188,055.88 : x
  2. Step 2: Convert to fraction form
    317,040.89/437,534.46 = 188,055.88/x
  3. Step 3: Cross multiply
    317,040.89x = 437,534.46 × 188,055.88
  4. Step 4: Simplify right side
    317,040.89x = 82,280,926,811.79
  5. Step 5: Solve for x
    x = 82,280,926,811.79/317,040.89
  6. Step 6: Final answer
    x = 259,527.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.