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Finding the Fourth Proportional to 235,955.84, 325,611.84 and 128,524.16

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Solution

The fourth proportional to 235,955.84, 325,611.84 and 128,524.16 is: 177,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,955.84 : 325,611.84 = 128,524.16 : x
  2. Step 2: Convert to fraction form
    235,955.84/325,611.84 = 128,524.16/x
  3. Step 3: Cross multiply
    235,955.84x = 325,611.84 × 128,524.16
  4. Step 4: Simplify right side
    235,955.84x = 41,848,988,222.05
  5. Step 5: Solve for x
    x = 41,848,988,222.05/235,955.84
  6. Step 6: Final answer
    x = 177,359.41

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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.