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Finding the Fourth Proportional to 139,790.70, 209,511.18 and 110,091.24

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Solution

The fourth proportional to 139,790.70, 209,511.18 and 110,091.24 is: 164,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,790.70 : 209,511.18 = 110,091.24 : x
  2. Step 2: Convert to fraction form
    139,790.70/209,511.18 = 110,091.24/x
  3. Step 3: Cross multiply
    139,790.70x = 209,511.18 × 110,091.24
  4. Step 4: Simplify right side
    139,790.70x = 23,065,345,600.06
  5. Step 5: Solve for x
    x = 23,065,345,600.06/139,790.70
  6. Step 6: Final answer
    x = 164,999.14

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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.