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Finding the Fourth Proportional to 190,367.80, 285,551.70 and 50,140.60

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Solution

The fourth proportional to 190,367.80, 285,551.70 and 50,140.60 is: 75,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,367.80 : 285,551.70 = 50,140.60 : x
  2. Step 2: Convert to fraction form
    190,367.80/285,551.70 = 50,140.60/x
  3. Step 3: Cross multiply
    190,367.80x = 285,551.70 × 50,140.60
  4. Step 4: Simplify right side
    190,367.80x = 14,317,733,569.02
  5. Step 5: Solve for x
    x = 14,317,733,569.02/190,367.80
  6. Step 6: Final answer
    x = 75,210.90

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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.