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Finding the Fourth Proportional to 172,956.54, 259,442.55 and 53,004.81

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Solution

The fourth proportional to 172,956.54, 259,442.55 and 53,004.81 is: 79,509.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.54 : 259,442.55 = 53,004.81 : x
  2. Step 2: Convert to fraction form
    172,956.54/259,442.55 = 53,004.81/x
  3. Step 3: Cross multiply
    172,956.54x = 259,442.55 × 53,004.81
  4. Step 4: Simplify right side
    172,956.54x = 13,751,703,068.67
  5. Step 5: Solve for x
    x = 13,751,703,068.67/172,956.54
  6. Step 6: Final answer
    x = 79,509.59

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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.