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Finding the Fourth Proportional to 255,321.81, 352,290.69 and 147,885.44

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Solution

The fourth proportional to 255,321.81, 352,290.69 and 147,885.44 is: 204,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,321.81 : 352,290.69 = 147,885.44 : x
  2. Step 2: Convert to fraction form
    255,321.81/352,290.69 = 147,885.44/x
  3. Step 3: Cross multiply
    255,321.81x = 352,290.69 × 147,885.44
  4. Step 4: Simplify right side
    255,321.81x = 52,098,661,937.10
  5. Step 5: Solve for x
    x = 52,098,661,937.10/255,321.81
  6. Step 6: Final answer
    x = 204,050.97

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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.