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Finding the Fourth Proportional to 133,418.64, 200,127.96 and 53,492.88

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Solution

The fourth proportional to 133,418.64, 200,127.96 and 53,492.88 is: 80,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,418.64 : 200,127.96 = 53,492.88 : x
  2. Step 2: Convert to fraction form
    133,418.64/200,127.96 = 53,492.88/x
  3. Step 3: Cross multiply
    133,418.64x = 200,127.96 × 53,492.88
  4. Step 4: Simplify right side
    133,418.64x = 10,705,420,948.92
  5. Step 5: Solve for x
    x = 10,705,420,948.92/133,418.64
  6. Step 6: Final answer
    x = 80,239.32

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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.