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Finding the Fourth Proportional to 235,452.47, 324,928.46 and 128,023.22

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Solution

The fourth proportional to 235,452.47, 324,928.46 and 128,023.22 is: 176,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,452.47 : 324,928.46 = 128,023.22 : x
  2. Step 2: Convert to fraction form
    235,452.47/324,928.46 = 128,023.22/x
  3. Step 3: Cross multiply
    235,452.47x = 324,928.46 × 128,023.22
  4. Step 4: Simplify right side
    235,452.47x = 41,598,388,851.22
  5. Step 5: Solve for x
    x = 41,598,388,851.22/235,452.47
  6. Step 6: Final answer
    x = 176,674.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.