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Finding the Fourth Proportional to 368,149.33, 552,087.27 and 128,201.63

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Solution

The fourth proportional to 368,149.33, 552,087.27 and 128,201.63 is: 192,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,149.33 : 552,087.27 = 128,201.63 : x
  2. Step 2: Convert to fraction form
    368,149.33/552,087.27 = 128,201.63/x
  3. Step 3: Cross multiply
    368,149.33x = 552,087.27 × 128,201.63
  4. Step 4: Simplify right side
    368,149.33x = 70,778,487,916.25
  5. Step 5: Solve for x
    x = 70,778,487,916.25/368,149.33
  6. Step 6: Final answer
    x = 192,254.83

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1.5x scale

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.