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Finding the Fourth Proportional to 235,497.78, 324,995.49 and 134,915.22

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Solution

The fourth proportional to 235,497.78, 324,995.49 and 134,915.22 is: 186,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,497.78 : 324,995.49 = 134,915.22 : x
  2. Step 2: Convert to fraction form
    235,497.78/324,995.49 = 134,915.22/x
  3. Step 3: Cross multiply
    235,497.78x = 324,995.49 × 134,915.22
  4. Step 4: Simplify right side
    235,497.78x = 43,846,838,032.36
  5. Step 5: Solve for x
    x = 43,846,838,032.36/235,497.78
  6. Step 6: Final answer
    x = 186,187.90

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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.