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Finding the Fourth Proportional to 172,930.64, 238,697.57 and 101,333.93

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Solution

The fourth proportional to 172,930.64, 238,697.57 and 101,333.93 is: 139,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,930.64 : 238,697.57 = 101,333.93 : x
  2. Step 2: Convert to fraction form
    172,930.64/238,697.57 = 101,333.93/x
  3. Step 3: Cross multiply
    172,930.64x = 238,697.57 × 101,333.93
  4. Step 4: Simplify right side
    172,930.64x = 24,188,162,342.88
  5. Step 5: Solve for x
    x = 24,188,162,342.88/172,930.64
  6. Step 6: Final answer
    x = 139,872.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.