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Finding the Fourth Proportional to 51,194.80, 76,907.40 and 49,812.40

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Solution

The fourth proportional to 51,194.80, 76,907.40 and 49,812.40 is: 74,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,194.80 : 76,907.40 = 49,812.40 : x
  2. Step 2: Convert to fraction form
    51,194.80/76,907.40 = 49,812.40/x
  3. Step 3: Cross multiply
    51,194.80x = 76,907.40 × 49,812.40
  4. Step 4: Simplify right side
    51,194.80x = 3,830,942,171.76
  5. Step 5: Solve for x
    x = 3,830,942,171.76/51,194.80
  6. Step 6: Final answer
    x = 74,830.69

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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.