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Finding the Fourth Proportional to 77,727.60, 116,591.40 and 48,236.40

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Solution

The fourth proportional to 77,727.60, 116,591.40 and 48,236.40 is: 72,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,727.60 : 116,591.40 = 48,236.40 : x
  2. Step 2: Convert to fraction form
    77,727.60/116,591.40 = 48,236.40/x
  3. Step 3: Cross multiply
    77,727.60x = 116,591.40 × 48,236.40
  4. Step 4: Simplify right side
    77,727.60x = 5,623,949,406.96
  5. Step 5: Solve for x
    x = 5,623,949,406.96/77,727.60
  6. Step 6: Final answer
    x = 72,354.60

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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.