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Finding the Fourth Proportional to 256,168.01, 353,586.93 and 148,786.31

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Solution

The fourth proportional to 256,168.01, 353,586.93 and 148,786.31 is: 205,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,168.01 : 353,586.93 = 148,786.31 : x
  2. Step 2: Convert to fraction form
    256,168.01/353,586.93 = 148,786.31/x
  3. Step 3: Cross multiply
    256,168.01x = 353,586.93 × 148,786.31
  4. Step 4: Simplify right side
    256,168.01x = 52,608,894,578.93
  5. Step 5: Solve for x
    x = 52,608,894,578.93/256,168.01
  6. Step 6: Final answer
    x = 205,368.71

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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.