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Finding the Fourth Proportional to 255,505.96, 352,598.16 and 140,786.20

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Solution

The fourth proportional to 255,505.96, 352,598.16 and 140,786.20 is: 194,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,505.96 : 352,598.16 = 140,786.20 : x
  2. Step 2: Convert to fraction form
    255,505.96/352,598.16 = 140,786.20/x
  3. Step 3: Cross multiply
    255,505.96x = 352,598.16 × 140,786.20
  4. Step 4: Simplify right side
    255,505.96x = 49,640,955,073.39
  5. Step 5: Solve for x
    x = 49,640,955,073.39/255,505.96
  6. Step 6: Final answer
    x = 194,284.92

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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.