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Finding the Fourth Proportional to 54,188.60, 81,282.90 and 49,004.60

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Solution

The fourth proportional to 54,188.60, 81,282.90 and 49,004.60 is: 73,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,188.60 : 81,282.90 = 49,004.60 : x
  2. Step 2: Convert to fraction form
    54,188.60/81,282.90 = 49,004.60/x
  3. Step 3: Cross multiply
    54,188.60x = 81,282.90 × 49,004.60
  4. Step 4: Simplify right side
    54,188.60x = 3,983,236,001.34
  5. Step 5: Solve for x
    x = 3,983,236,001.34/54,188.60
  6. Step 6: Final answer
    x = 73,506.90

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1.5x scale

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.