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Finding the Fourth Proportional to 235,370.55, 353,055.83 and 218,090.55

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Solution

The fourth proportional to 235,370.55, 353,055.83 and 218,090.55 is: 327,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,370.55 : 353,055.83 = 218,090.55 : x
  2. Step 2: Convert to fraction form
    235,370.55/353,055.83 = 218,090.55/x
  3. Step 3: Cross multiply
    235,370.55x = 353,055.83 × 218,090.55
  4. Step 4: Simplify right side
    235,370.55x = 76,998,139,054.95
  5. Step 5: Solve for x
    x = 76,998,139,054.95/235,370.55
  6. Step 6: Final answer
    x = 327,135.83

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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.