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Finding the Fourth Proportional to 256,410.10, 353,866.62 and 141,698.85

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Solution

The fourth proportional to 256,410.10, 353,866.62 and 141,698.85 is: 195,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,410.10 : 353,866.62 = 141,698.85 : x
  2. Step 2: Convert to fraction form
    256,410.10/353,866.62 = 141,698.85/x
  3. Step 3: Cross multiply
    256,410.10x = 353,866.62 × 141,698.85
  4. Step 4: Simplify right side
    256,410.10x = 50,142,493,107.39
  5. Step 5: Solve for x
    x = 50,142,493,107.39/256,410.10
  6. Step 6: Final answer
    x = 195,555.84

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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.