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Finding the Fourth Proportional to 190,167.40, 285,251.10 and 188,417.80

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Solution

The fourth proportional to 190,167.40, 285,251.10 and 188,417.80 is: 282,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,167.40 : 285,251.10 = 188,417.80 : x
  2. Step 2: Convert to fraction form
    190,167.40/285,251.10 = 188,417.80/x
  3. Step 3: Cross multiply
    190,167.40x = 285,251.10 × 188,417.80
  4. Step 4: Simplify right side
    190,167.40x = 53,746,384,709.58
  5. Step 5: Solve for x
    x = 53,746,384,709.58/190,167.40
  6. Step 6: Final answer
    x = 282,626.70

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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.