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Finding the Fourth Proportional to 235,955.64, 325,623.73 and 128,525.41

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Solution

The fourth proportional to 235,955.64, 325,623.73 and 128,525.41 is: 177,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,955.64 : 325,623.73 = 128,525.41 : x
  2. Step 2: Convert to fraction form
    235,955.64/325,623.73 = 128,525.41/x
  3. Step 3: Cross multiply
    235,955.64x = 325,623.73 × 128,525.41
  4. Step 4: Simplify right side
    235,955.64x = 41,850,921,775.86
  5. Step 5: Solve for x
    x = 41,850,921,775.86/235,955.64
  6. Step 6: Final answer
    x = 177,367.75

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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.