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Finding the Fourth Proportional to 93,933, 129,640.80 and 58,134.54

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Solution

The fourth proportional to 93,933, 129,640.80 and 58,134.54 is: 80,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,933 : 129,640.80 = 58,134.54 : x
  2. Step 2: Convert to fraction form
    93,933/129,640.80 = 58,134.54/x
  3. Step 3: Cross multiply
    93,933x = 129,640.80 × 58,134.54
  4. Step 4: Simplify right side
    93,933x = 7,536,608,273.23
  5. Step 5: Solve for x
    x = 7,536,608,273.23/93,933
  6. Step 6: Final answer
    x = 80,233.87

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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.