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Finding the Fourth Proportional to 188,465.38, 259,813.02 and 134,730.70

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Solution

The fourth proportional to 188,465.38, 259,813.02 and 134,730.70 is: 185,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,465.38 : 259,813.02 = 134,730.70 : x
  2. Step 2: Convert to fraction form
    188,465.38/259,813.02 = 134,730.70/x
  3. Step 3: Cross multiply
    188,465.38x = 259,813.02 × 134,730.70
  4. Step 4: Simplify right side
    188,465.38x = 35,004,790,053.71
  5. Step 5: Solve for x
    x = 35,004,790,053.71/188,465.38
  6. Step 6: Final answer
    x = 185,735.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.