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Finding the Fourth Proportional to 171,202.10, 256,839.60 and 52,885.40

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Solution

The fourth proportional to 171,202.10, 256,839.60 and 52,885.40 is: 79,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,202.10 : 256,839.60 = 52,885.40 : x
  2. Step 2: Convert to fraction form
    171,202.10/256,839.60 = 52,885.40/x
  3. Step 3: Cross multiply
    171,202.10x = 256,839.60 × 52,885.40
  4. Step 4: Simplify right side
    171,202.10x = 13,583,064,981.84
  5. Step 5: Solve for x
    x = 13,583,064,981.84/171,202.10
  6. Step 6: Final answer
    x = 79,339.36

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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.