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Finding the Fourth Proportional to 182,628.96, 251,559.24 and 128,819.40

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Solution

The fourth proportional to 182,628.96, 251,559.24 and 128,819.40 is: 177,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,628.96 : 251,559.24 = 128,819.40 : x
  2. Step 2: Convert to fraction form
    182,628.96/251,559.24 = 128,819.40/x
  3. Step 3: Cross multiply
    182,628.96x = 251,559.24 × 128,819.40
  4. Step 4: Simplify right side
    182,628.96x = 32,405,710,361.26
  5. Step 5: Solve for x
    x = 32,405,710,361.26/182,628.96
  6. Step 6: Final answer
    x = 177,440.15

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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.