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Finding the Fourth Proportional to 481,479.58, 722,222.97 and 126,492.94

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Solution

The fourth proportional to 481,479.58, 722,222.97 and 126,492.94 is: 189,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,479.58 : 722,222.97 = 126,492.94 : x
  2. Step 2: Convert to fraction form
    481,479.58/722,222.97 = 126,492.94/x
  3. Step 3: Cross multiply
    481,479.58x = 722,222.97 × 126,492.94
  4. Step 4: Simplify right side
    481,479.58x = 91,356,106,810.83
  5. Step 5: Solve for x
    x = 91,356,106,810.83/481,479.58
  6. Step 6: Final answer
    x = 189,740.36

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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.