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Finding the Fourth Proportional to 368,082.60, 552,123.90 and 218,783.40

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Solution

The fourth proportional to 368,082.60, 552,123.90 and 218,783.40 is: 328,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,082.60 : 552,123.90 = 218,783.40 : x
  2. Step 2: Convert to fraction form
    368,082.60/552,123.90 = 218,783.40/x
  3. Step 3: Cross multiply
    368,082.60x = 552,123.90 × 218,783.40
  4. Step 4: Simplify right side
    368,082.60x = 120,795,544,063.26
  5. Step 5: Solve for x
    x = 120,795,544,063.26/368,082.60
  6. Step 6: Final answer
    x = 328,175.10

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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.