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Finding the Fourth Proportional to 358,857.56, 538,268.47 and 134,201.50

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Solution

The fourth proportional to 358,857.56, 538,268.47 and 134,201.50 is: 201,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,857.56 : 538,268.47 = 134,201.50 : x
  2. Step 2: Convert to fraction form
    358,857.56/538,268.47 = 134,201.50/x
  3. Step 3: Cross multiply
    358,857.56x = 538,268.47 × 134,201.50
  4. Step 4: Simplify right side
    358,857.56x = 72,236,434,395.53
  5. Step 5: Solve for x
    x = 72,236,434,395.53/358,857.56
  6. Step 6: Final answer
    x = 201,295.56

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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.