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Finding the Fourth Proportional to 235,453.59, 324,930.02 and 128,024.33

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Solution

The fourth proportional to 235,453.59, 324,930.02 and 128,024.33 is: 176,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,453.59 : 324,930.02 = 128,024.33 : x
  2. Step 2: Convert to fraction form
    235,453.59/324,930.02 = 128,024.33/x
  3. Step 3: Cross multiply
    235,453.59x = 324,930.02 × 128,024.33
  4. Step 4: Simplify right side
    235,453.59x = 41,598,945,842.61
  5. Step 5: Solve for x
    x = 41,598,945,842.61/235,453.59
  6. Step 6: Final answer
    x = 176,675.78

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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.