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Finding the Fourth Proportional to 225,675.32, 311,425.26 and 123,698.60

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Solution

The fourth proportional to 225,675.32, 311,425.26 and 123,698.60 is: 170,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,675.32 : 311,425.26 = 123,698.60 : x
  2. Step 2: Convert to fraction form
    225,675.32/311,425.26 = 123,698.60/x
  3. Step 3: Cross multiply
    225,675.32x = 311,425.26 × 123,698.60
  4. Step 4: Simplify right side
    225,675.32x = 38,522,868,666.64
  5. Step 5: Solve for x
    x = 38,522,868,666.64/225,675.32
  6. Step 6: Final answer
    x = 170,700.41

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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.