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Finding the Fourth Proportional to 368,082.80, 552,253.80 and 157,785.20

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Solution

The fourth proportional to 368,082.80, 552,253.80 and 157,785.20 is: 236,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,082.80 : 552,253.80 = 157,785.20 : x
  2. Step 2: Convert to fraction form
    368,082.80/552,253.80 = 157,785.20/x
  3. Step 3: Cross multiply
    368,082.80x = 552,253.80 × 157,785.20
  4. Step 4: Simplify right side
    368,082.80x = 87,137,476,283.76
  5. Step 5: Solve for x
    x = 87,137,476,283.76/368,082.80
  6. Step 6: Final answer
    x = 236,733.36

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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.