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Finding the Fourth Proportional to 256,908.51, 354,609.54 and 149,526.27

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Solution

The fourth proportional to 256,908.51, 354,609.54 and 149,526.27 is: 206,390.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,908.51 : 354,609.54 = 149,526.27 : x
  2. Step 2: Convert to fraction form
    256,908.51/354,609.54 = 149,526.27/x
  3. Step 3: Cross multiply
    256,908.51x = 354,609.54 × 149,526.27
  4. Step 4: Simplify right side
    256,908.51x = 53,023,441,822.62
  5. Step 5: Solve for x
    x = 53,023,441,822.62/256,908.51
  6. Step 6: Final answer
    x = 206,390.37

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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.