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Finding the Fourth Proportional to 256,501.67, 353,923.58 and 160,965.31

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Solution

The fourth proportional to 256,501.67, 353,923.58 and 160,965.31 is: 222,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,501.67 : 353,923.58 = 160,965.31 : x
  2. Step 2: Convert to fraction form
    256,501.67/353,923.58 = 160,965.31/x
  3. Step 3: Cross multiply
    256,501.67x = 353,923.58 × 160,965.31
  4. Step 4: Simplify right side
    256,501.67x = 56,969,417,081.37
  5. Step 5: Solve for x
    x = 56,969,417,081.37/256,501.67
  6. Step 6: Final answer
    x = 222,101.54

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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.