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Finding the Fourth Proportional to 235,770.48, 353,620.62 and 85,975.56

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Solution

The fourth proportional to 235,770.48, 353,620.62 and 85,975.56 is: 128,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,770.48 : 353,620.62 = 85,975.56 : x
  2. Step 2: Convert to fraction form
    235,770.48/353,620.62 = 85,975.56/x
  3. Step 3: Cross multiply
    235,770.48x = 353,620.62 × 85,975.56
  4. Step 4: Simplify right side
    235,770.48x = 30,402,730,832.05
  5. Step 5: Solve for x
    x = 30,402,730,832.05/235,770.48
  6. Step 6: Final answer
    x = 128,950.54

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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.