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Finding the Fourth Proportional to 235,452.07, 353,400.07 and 85,836.97

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Solution

The fourth proportional to 235,452.07, 353,400.07 and 85,836.97 is: 128,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,452.07 : 353,400.07 = 85,836.97 : x
  2. Step 2: Convert to fraction form
    235,452.07/353,400.07 = 85,836.97/x
  3. Step 3: Cross multiply
    235,452.07x = 353,400.07 × 85,836.97
  4. Step 4: Simplify right side
    235,452.07x = 30,334,789,225.00
  5. Step 5: Solve for x
    x = 30,334,789,225.00/235,452.07
  6. Step 6: Final answer
    x = 128,836.37

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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.