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Finding the Fourth Proportional to 358,515.99, 538,106.27 and 181,147.64

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Solution

The fourth proportional to 358,515.99, 538,106.27 and 181,147.64 is: 271,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,515.99 : 538,106.27 = 181,147.64 : x
  2. Step 2: Convert to fraction form
    358,515.99/538,106.27 = 181,147.64/x
  3. Step 3: Cross multiply
    358,515.99x = 538,106.27 × 181,147.64
  4. Step 4: Simplify right side
    358,515.99x = 97,476,677,283.43
  5. Step 5: Solve for x
    x = 97,476,677,283.43/358,515.99
  6. Step 6: Final answer
    x = 271,889.34

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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.