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Finding the Fourth Proportional to 46,806.60, 70,209.90 and 40,974.60

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Solution

The fourth proportional to 46,806.60, 70,209.90 and 40,974.60 is: 61,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,806.60 : 70,209.90 = 40,974.60 : x
  2. Step 2: Convert to fraction form
    46,806.60/70,209.90 = 40,974.60/x
  3. Step 3: Cross multiply
    46,806.60x = 70,209.90 × 40,974.60
  4. Step 4: Simplify right side
    46,806.60x = 2,876,822,568.54
  5. Step 5: Solve for x
    x = 2,876,822,568.54/46,806.60
  6. Step 6: Final answer
    x = 61,461.90

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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.