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Finding the Fourth Proportional to 528,093.96, 792,127.86 and 154,120.20

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Solution

The fourth proportional to 528,093.96, 792,127.86 and 154,120.20 is: 231,176.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,093.96 : 792,127.86 = 154,120.20 : x
  2. Step 2: Convert to fraction form
    528,093.96/792,127.86 = 154,120.20/x
  3. Step 3: Cross multiply
    528,093.96x = 792,127.86 × 154,120.20
  4. Step 4: Simplify right side
    528,093.96x = 122,082,904,208.77
  5. Step 5: Solve for x
    x = 122,082,904,208.77/528,093.96
  6. Step 6: Final answer
    x = 231,176.48

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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.