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Finding the Fourth Proportional to 256,347.67, 353,749.09 and 147,443.73

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Solution

The fourth proportional to 256,347.67, 353,749.09 and 147,443.73 is: 203,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,347.67 : 353,749.09 = 147,443.73 : x
  2. Step 2: Convert to fraction form
    256,347.67/353,749.09 = 147,443.73/x
  3. Step 3: Cross multiply
    256,347.67x = 353,749.09 × 147,443.73
  4. Step 4: Simplify right side
    256,347.67x = 52,158,085,313.71
  5. Step 5: Solve for x
    x = 52,158,085,313.71/256,347.67
  6. Step 6: Final answer
    x = 203,466.20

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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.