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Finding the Fourth Proportional to 54,903.80, 82,355.70 and 48,124.10

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Solution

The fourth proportional to 54,903.80, 82,355.70 and 48,124.10 is: 72,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,903.80 : 82,355.70 = 48,124.10 : x
  2. Step 2: Convert to fraction form
    54,903.80/82,355.70 = 48,124.10/x
  3. Step 3: Cross multiply
    54,903.80x = 82,355.70 × 48,124.10
  4. Step 4: Simplify right side
    54,903.80x = 3,963,293,942.37
  5. Step 5: Solve for x
    x = 3,963,293,942.37/54,903.80
  6. Step 6: Final answer
    x = 72,186.15

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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.