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Finding the Fourth Proportional to 368,135.28, 552,138.12 and 98,266.77

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Solution

The fourth proportional to 368,135.28, 552,138.12 and 98,266.77 is: 147,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,135.28 : 552,138.12 = 98,266.77 : x
  2. Step 2: Convert to fraction form
    368,135.28/552,138.12 = 98,266.77/x
  3. Step 3: Cross multiply
    368,135.28x = 552,138.12 × 98,266.77
  4. Step 4: Simplify right side
    368,135.28x = 54,256,829,646.27
  5. Step 5: Solve for x
    x = 54,256,829,646.27/368,135.28
  6. Step 6: Final answer
    x = 147,382.86

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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.