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Finding the Fourth Proportional to 113,860.40, 170,790.60 and 75,806.60

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Solution

The fourth proportional to 113,860.40, 170,790.60 and 75,806.60 is: 113,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,860.40 : 170,790.60 = 75,806.60 : x
  2. Step 2: Convert to fraction form
    113,860.40/170,790.60 = 75,806.60/x
  3. Step 3: Cross multiply
    113,860.40x = 170,790.60 × 75,806.60
  4. Step 4: Simplify right side
    113,860.40x = 12,947,054,697.96
  5. Step 5: Solve for x
    x = 12,947,054,697.96/113,860.40
  6. Step 6: Final answer
    x = 113,709.90

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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.