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Finding the Fourth Proportional to 358,858.91, 538,270.47 and 134,202.83

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Solution

The fourth proportional to 358,858.91, 538,270.47 and 134,202.83 is: 201,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,858.91 : 538,270.47 = 134,202.83 : x
  2. Step 2: Convert to fraction form
    358,858.91/538,270.47 = 134,202.83/x
  3. Step 3: Cross multiply
    358,858.91x = 538,270.47 × 134,202.83
  4. Step 4: Simplify right side
    358,858.91x = 72,237,417,688.08
  5. Step 5: Solve for x
    x = 72,237,417,688.08/358,858.91
  6. Step 6: Final answer
    x = 201,297.54

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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.