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Finding the Fourth Proportional to 190,866.40, 286,299.60 and 174,536.80

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Solution

The fourth proportional to 190,866.40, 286,299.60 and 174,536.80 is: 261,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,866.40 : 286,299.60 = 174,536.80 : x
  2. Step 2: Convert to fraction form
    190,866.40/286,299.60 = 174,536.80/x
  3. Step 3: Cross multiply
    190,866.40x = 286,299.60 × 174,536.80
  4. Step 4: Simplify right side
    190,866.40x = 49,969,816,025.28
  5. Step 5: Solve for x
    x = 49,969,816,025.28/190,866.40
  6. Step 6: Final answer
    x = 261,805.20

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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.