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Finding the Fourth Proportional to 255,240.58, 352,226.01 and 142,060.90

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Solution

The fourth proportional to 255,240.58, 352,226.01 and 142,060.90 is: 196,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,240.58 : 352,226.01 = 142,060.90 : x
  2. Step 2: Convert to fraction form
    255,240.58/352,226.01 = 142,060.90/x
  3. Step 3: Cross multiply
    255,240.58x = 352,226.01 × 142,060.90
  4. Step 4: Simplify right side
    255,240.58x = 50,037,543,984.01
  5. Step 5: Solve for x
    x = 50,037,543,984.01/255,240.58
  6. Step 6: Final answer
    x = 196,040.71

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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.