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Finding the Fourth Proportional to 92,383.48, 138,532.14 and 47,998.30

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Solution

The fourth proportional to 92,383.48, 138,532.14 and 47,998.30 is: 71,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,383.48 : 138,532.14 = 47,998.30 : x
  2. Step 2: Convert to fraction form
    92,383.48/138,532.14 = 47,998.30/x
  3. Step 3: Cross multiply
    92,383.48x = 138,532.14 × 47,998.30
  4. Step 4: Simplify right side
    92,383.48x = 6,649,307,215.36
  5. Step 5: Solve for x
    x = 6,649,307,215.36/92,383.48
  6. Step 6: Final answer
    x = 71,975.07

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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.