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Finding the Fourth Proportional to 360,272.48, 540,326.46 and 135,656.60

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Solution

The fourth proportional to 360,272.48, 540,326.46 and 135,656.60 is: 203,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,272.48 : 540,326.46 = 135,656.60 : x
  2. Step 2: Convert to fraction form
    360,272.48/540,326.46 = 135,656.60/x
  3. Step 3: Cross multiply
    360,272.48x = 540,326.46 × 135,656.60
  4. Step 4: Simplify right side
    360,272.48x = 73,298,850,453.64
  5. Step 5: Solve for x
    x = 73,298,850,453.64/360,272.48
  6. Step 6: Final answer
    x = 203,453.93

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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.