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Finding the Fourth Proportional to 125,635.60, 188,453.40 and 108,528.40

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Solution

The fourth proportional to 125,635.60, 188,453.40 and 108,528.40 is: 162,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,635.60 : 188,453.40 = 108,528.40 : x
  2. Step 2: Convert to fraction form
    125,635.60/188,453.40 = 108,528.40/x
  3. Step 3: Cross multiply
    125,635.60x = 188,453.40 × 108,528.40
  4. Step 4: Simplify right side
    125,635.60x = 20,452,545,976.56
  5. Step 5: Solve for x
    x = 20,452,545,976.56/125,635.60
  6. Step 6: Final answer
    x = 162,792.60

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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.