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Finding the Fourth Proportional to 73,936.80, 102,011.40 and 43,707.60

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Solution

The fourth proportional to 73,936.80, 102,011.40 and 43,707.60 is: 60,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,936.80 : 102,011.40 = 43,707.60 : x
  2. Step 2: Convert to fraction form
    73,936.80/102,011.40 = 43,707.60/x
  3. Step 3: Cross multiply
    73,936.80x = 102,011.40 × 43,707.60
  4. Step 4: Simplify right side
    73,936.80x = 4,458,673,466.64
  5. Step 5: Solve for x
    x = 4,458,673,466.64/73,936.80
  6. Step 6: Final answer
    x = 60,303.85

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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.