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Finding the Fourth Proportional to 93,693.72, 140,540.84 and 38,289.72

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Solution

The fourth proportional to 93,693.72, 140,540.84 and 38,289.72 is: 57,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,693.72 : 140,540.84 = 38,289.72 : x
  2. Step 2: Convert to fraction form
    93,693.72/140,540.84 = 38,289.72/x
  3. Step 3: Cross multiply
    93,693.72x = 140,540.84 × 38,289.72
  4. Step 4: Simplify right side
    93,693.72x = 5,381,269,412.16
  5. Step 5: Solve for x
    x = 5,381,269,412.16/93,693.72
  6. Step 6: Final answer
    x = 57,434.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.