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Finding the Fourth Proportional to 93,805.16, 129,471.21 and 59,805.81

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Solution

The fourth proportional to 93,805.16, 129,471.21 and 59,805.81 is: 82,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,805.16 : 129,471.21 = 59,805.81 : x
  2. Step 2: Convert to fraction form
    93,805.16/129,471.21 = 59,805.81/x
  3. Step 3: Cross multiply
    93,805.16x = 129,471.21 × 59,805.81
  4. Step 4: Simplify right side
    93,805.16x = 7,743,130,585.73
  5. Step 5: Solve for x
    x = 7,743,130,585.73/93,805.16
  6. Step 6: Final answer
    x = 82,544.83

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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.