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Finding the Fourth Proportional to 235,350.40, 324,785.68 and 127,920.64

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Solution

The fourth proportional to 235,350.40, 324,785.68 and 127,920.64 is: 176,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,350.40 : 324,785.68 = 127,920.64 : x
  2. Step 2: Convert to fraction form
    235,350.40/324,785.68 = 127,920.64/x
  3. Step 3: Cross multiply
    235,350.40x = 324,785.68 × 127,920.64
  4. Step 4: Simplify right side
    235,350.40x = 41,546,792,048.44
  5. Step 5: Solve for x
    x = 41,546,792,048.44/235,350.40
  6. Step 6: Final answer
    x = 176,531.64

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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.