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Finding the Fourth Proportional to 256,057.04, 383,571.12 and 127,585.82

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Solution

The fourth proportional to 256,057.04, 383,571.12 and 127,585.82 is: 191,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,057.04 : 383,571.12 = 127,585.82 : x
  2. Step 2: Convert to fraction form
    256,057.04/383,571.12 = 127,585.82/x
  3. Step 3: Cross multiply
    256,057.04x = 383,571.12 × 127,585.82
  4. Step 4: Simplify right side
    256,057.04x = 48,938,235,873.52
  5. Step 5: Solve for x
    x = 48,938,235,873.52/256,057.04
  6. Step 6: Final answer
    x = 191,122.40

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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.