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Finding the Fourth Proportional to 147,450.48, 203,484.72 and 82,920.96

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Solution

The fourth proportional to 147,450.48, 203,484.72 and 82,920.96 is: 114,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,450.48 : 203,484.72 = 82,920.96 : x
  2. Step 2: Convert to fraction form
    147,450.48/203,484.72 = 82,920.96/x
  3. Step 3: Cross multiply
    147,450.48x = 203,484.72 × 82,920.96
  4. Step 4: Simplify right side
    147,450.48x = 16,873,148,327.73
  5. Step 5: Solve for x
    x = 16,873,148,327.73/147,450.48
  6. Step 6: Final answer
    x = 114,432.64

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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.