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Finding the Fourth Proportional to 256,059.66, 383,966.54 and 121,011.34

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Solution

The fourth proportional to 256,059.66, 383,966.54 and 121,011.34 is: 181,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,059.66 : 383,966.54 = 121,011.34 : x
  2. Step 2: Convert to fraction form
    256,059.66/383,966.54 = 121,011.34/x
  3. Step 3: Cross multiply
    256,059.66x = 383,966.54 × 121,011.34
  4. Step 4: Simplify right side
    256,059.66x = 46,464,305,520.56
  5. Step 5: Solve for x
    x = 46,464,305,520.56/256,059.66
  6. Step 6: Final answer
    x = 181,458.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.