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Finding the Fourth Proportional to 54,246.60, 81,369.90 and 48,803.40

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Solution

The fourth proportional to 54,246.60, 81,369.90 and 48,803.40 is: 73,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,246.60 : 81,369.90 = 48,803.40 : x
  2. Step 2: Convert to fraction form
    54,246.60/81,369.90 = 48,803.40/x
  3. Step 3: Cross multiply
    54,246.60x = 81,369.90 × 48,803.40
  4. Step 4: Simplify right side
    54,246.60x = 3,971,127,777.66
  5. Step 5: Solve for x
    x = 3,971,127,777.66/54,246.60
  6. Step 6: Final answer
    x = 73,205.10

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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.