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Finding the Fourth Proportional to 255,214.50, 352,216.35 and 147,786.42

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Solution

The fourth proportional to 255,214.50, 352,216.35 and 147,786.42 is: 203,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,214.50 : 352,216.35 = 147,786.42 : x
  2. Step 2: Convert to fraction form
    255,214.50/352,216.35 = 147,786.42/x
  3. Step 3: Cross multiply
    255,214.50x = 352,216.35 × 147,786.42
  4. Step 4: Simplify right side
    255,214.50x = 52,052,793,431.97
  5. Step 5: Solve for x
    x = 52,052,793,431.97/255,214.50
  6. Step 6: Final answer
    x = 203,957.04

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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.