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Finding the Fourth Proportional to 368,254.08, 552,452.40 and 143,605.44

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Solution

The fourth proportional to 368,254.08, 552,452.40 and 143,605.44 is: 215,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,254.08 : 552,452.40 = 143,605.44 : x
  2. Step 2: Convert to fraction form
    368,254.08/552,452.40 = 143,605.44/x
  3. Step 3: Cross multiply
    368,254.08x = 552,452.40 × 143,605.44
  4. Step 4: Simplify right side
    368,254.08x = 79,335,169,981.06
  5. Step 5: Solve for x
    x = 79,335,169,981.06/368,254.08
  6. Step 6: Final answer
    x = 215,435.96

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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.