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Finding the Fourth Proportional to 93,805.37, 129,450.12 and 51,363.90

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Solution

The fourth proportional to 93,805.37, 129,450.12 and 51,363.90 is: 70,881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,805.37 : 129,450.12 = 51,363.90 : x
  2. Step 2: Convert to fraction form
    93,805.37/129,450.12 = 51,363.90/x
  3. Step 3: Cross multiply
    93,805.37x = 129,450.12 × 51,363.90
  4. Step 4: Simplify right side
    93,805.37x = 6,649,062,826.05
  5. Step 5: Solve for x
    x = 6,649,062,826.05/93,805.37
  6. Step 6: Final answer
    x = 70,881.47

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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.