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Finding the Fourth Proportional to 70,188.94, 105,253.44 and 40,627.18

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Solution

The fourth proportional to 70,188.94, 105,253.44 and 40,627.18 is: 60,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,188.94 : 105,253.44 = 40,627.18 : x
  2. Step 2: Convert to fraction form
    70,188.94/105,253.44 = 40,627.18/x
  3. Step 3: Cross multiply
    70,188.94x = 105,253.44 × 40,627.18
  4. Step 4: Simplify right side
    70,188.94x = 4,276,150,037.01
  5. Step 5: Solve for x
    x = 4,276,150,037.01/70,188.94
  6. Step 6: Final answer
    x = 60,923.42

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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.