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Finding the Fourth Proportional to 358,857.57, 538,268.46 and 134,201.51

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Solution

The fourth proportional to 358,857.57, 538,268.46 and 134,201.51 is: 201,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,857.57 : 538,268.46 = 134,201.51 : x
  2. Step 2: Convert to fraction form
    358,857.57/538,268.46 = 134,201.51/x
  3. Step 3: Cross multiply
    358,857.57x = 538,268.46 × 134,201.51
  4. Step 4: Simplify right side
    358,857.57x = 72,236,437,426.03
  5. Step 5: Solve for x
    x = 72,236,437,426.03/358,857.57
  6. Step 6: Final answer
    x = 201,295.57

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1.5x scale

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.