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Finding the Fourth Proportional to 256,009.92, 353,313.72 and 141,311.33

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Solution

The fourth proportional to 256,009.92, 353,313.72 and 141,311.33 is: 195,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,009.92 : 353,313.72 = 141,311.33 : x
  2. Step 2: Convert to fraction form
    256,009.92/353,313.72 = 141,311.33/x
  3. Step 3: Cross multiply
    256,009.92x = 353,313.72 × 141,311.33
  4. Step 4: Simplify right side
    256,009.92x = 49,927,233,623.63
  5. Step 5: Solve for x
    x = 49,927,233,623.63/256,009.92
  6. Step 6: Final answer
    x = 195,020.70

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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.