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Finding the Fourth Proportional to 68,554.80, 102,832.20 and 52,983.60

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Solution

The fourth proportional to 68,554.80, 102,832.20 and 52,983.60 is: 79,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,554.80 : 102,832.20 = 52,983.60 : x
  2. Step 2: Convert to fraction form
    68,554.80/102,832.20 = 52,983.60/x
  3. Step 3: Cross multiply
    68,554.80x = 102,832.20 × 52,983.60
  4. Step 4: Simplify right side
    68,554.80x = 5,448,420,151.92
  5. Step 5: Solve for x
    x = 5,448,420,151.92/68,554.80
  6. Step 6: Final answer
    x = 79,475.40

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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.