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Finding the Fourth Proportional to 93,474.54, 129,022.47 and 65,189.34

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Solution

The fourth proportional to 93,474.54, 129,022.47 and 65,189.34 is: 89,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,474.54 : 129,022.47 = 65,189.34 : x
  2. Step 2: Convert to fraction form
    93,474.54/129,022.47 = 65,189.34/x
  3. Step 3: Cross multiply
    93,474.54x = 129,022.47 × 65,189.34
  4. Step 4: Simplify right side
    93,474.54x = 8,410,889,664.47
  5. Step 5: Solve for x
    x = 8,410,889,664.47/93,474.54
  6. Step 6: Final answer
    x = 89,980.54

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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.