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Finding the Fourth Proportional to 54,292.60, 81,657.60 and 48,606.40

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Solution

The fourth proportional to 54,292.60, 81,657.60 and 48,606.40 is: 73,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,292.60 : 81,657.60 = 48,606.40 : x
  2. Step 2: Convert to fraction form
    54,292.60/81,657.60 = 48,606.40/x
  3. Step 3: Cross multiply
    54,292.60x = 81,657.60 × 48,606.40
  4. Step 4: Simplify right side
    54,292.60x = 3,969,081,968.64
  5. Step 5: Solve for x
    x = 3,969,081,968.64/54,292.60
  6. Step 6: Final answer
    x = 73,105.40

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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.