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Finding the Fourth Proportional to 172,804.12, 238,474.74 and 101,177.44

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Solution

The fourth proportional to 172,804.12, 238,474.74 and 101,177.44 is: 139,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,804.12 : 238,474.74 = 101,177.44 : x
  2. Step 2: Convert to fraction form
    172,804.12/238,474.74 = 101,177.44/x
  3. Step 3: Cross multiply
    172,804.12x = 238,474.74 × 101,177.44
  4. Step 4: Simplify right side
    172,804.12x = 24,128,263,697.87
  5. Step 5: Solve for x
    x = 24,128,263,697.87/172,804.12
  6. Step 6: Final answer
    x = 139,627.83

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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.