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Finding the Fourth Proportional to 77,469.25, 106,907.57 and 43,935.25

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Solution

The fourth proportional to 77,469.25, 106,907.57 and 43,935.25 is: 60,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,469.25 : 106,907.57 = 43,935.25 : x
  2. Step 2: Convert to fraction form
    77,469.25/106,907.57 = 43,935.25/x
  3. Step 3: Cross multiply
    77,469.25x = 106,907.57 × 43,935.25
  4. Step 4: Simplify right side
    77,469.25x = 4,697,010,814.84
  5. Step 5: Solve for x
    x = 4,697,010,814.84/77,469.25
  6. Step 6: Final answer
    x = 60,630.65

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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.