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Finding the Fourth Proportional to 93,489.94, 129,016.11 and 51,048.51

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Solution

The fourth proportional to 93,489.94, 129,016.11 and 51,048.51 is: 70,446.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,489.94 : 129,016.11 = 51,048.51 : x
  2. Step 2: Convert to fraction form
    93,489.94/129,016.11 = 51,048.51/x
  3. Step 3: Cross multiply
    93,489.94x = 129,016.11 × 51,048.51
  4. Step 4: Simplify right side
    93,489.94x = 6,586,080,181.50
  5. Step 5: Solve for x
    x = 6,586,080,181.50/93,489.94
  6. Step 6: Final answer
    x = 70,446.94

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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.