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Finding the Fourth Proportional to 190,367.15, 285,551.39 and 48,212.39

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Solution

The fourth proportional to 190,367.15, 285,551.39 and 48,212.39 is: 72,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,367.15 : 285,551.39 = 48,212.39 : x
  2. Step 2: Convert to fraction form
    190,367.15/285,551.39 = 48,212.39/x
  3. Step 3: Cross multiply
    190,367.15x = 285,551.39 × 48,212.39
  4. Step 4: Simplify right side
    190,367.15x = 13,767,114,979.72
  5. Step 5: Solve for x
    x = 13,767,114,979.72/190,367.15
  6. Step 6: Final answer
    x = 72,318.75

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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.