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Finding the Fourth Proportional to 360,268.48, 540,320.46 and 135,652.60

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Solution

The fourth proportional to 360,268.48, 540,320.46 and 135,652.60 is: 203,447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,268.48 : 540,320.46 = 135,652.60 : x
  2. Step 2: Convert to fraction form
    360,268.48/540,320.46 = 135,652.60/x
  3. Step 3: Cross multiply
    360,268.48x = 540,320.46 × 135,652.60
  4. Step 4: Simplify right side
    360,268.48x = 73,295,875,232.20
  5. Step 5: Solve for x
    x = 73,295,875,232.20/360,268.48
  6. Step 6: Final answer
    x = 203,447.93

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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.