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Finding the Fourth Proportional to 67,905.60, 101,858.40 and 50,409.60

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Solution

The fourth proportional to 67,905.60, 101,858.40 and 50,409.60 is: 75,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,905.60 : 101,858.40 = 50,409.60 : x
  2. Step 2: Convert to fraction form
    67,905.60/101,858.40 = 50,409.60/x
  3. Step 3: Cross multiply
    67,905.60x = 101,858.40 × 50,409.60
  4. Step 4: Simplify right side
    67,905.60x = 5,134,641,200.64
  5. Step 5: Solve for x
    x = 5,134,641,200.64/67,905.60
  6. Step 6: Final answer
    x = 75,614.40

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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.