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Finding the Fourth Proportional to 76,995.57, 106,250.88 and 48,330.63

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Solution

The fourth proportional to 76,995.57, 106,250.88 and 48,330.63 is: 66,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,995.57 : 106,250.88 = 48,330.63 : x
  2. Step 2: Convert to fraction form
    76,995.57/106,250.88 = 48,330.63/x
  3. Step 3: Cross multiply
    76,995.57x = 106,250.88 × 48,330.63
  4. Step 4: Simplify right side
    76,995.57x = 5,135,171,968.45
  5. Step 5: Solve for x
    x = 5,135,171,968.45/76,995.57
  6. Step 6: Final answer
    x = 66,694.38

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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.