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Finding the Fourth Proportional to 92,927.10, 128,250.40 and 55,201.50

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Solution

The fourth proportional to 92,927.10, 128,250.40 and 55,201.50 is: 76,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,927.10 : 128,250.40 = 55,201.50 : x
  2. Step 2: Convert to fraction form
    92,927.10/128,250.40 = 55,201.50/x
  3. Step 3: Cross multiply
    92,927.10x = 128,250.40 × 55,201.50
  4. Step 4: Simplify right side
    92,927.10x = 7,079,614,455.60
  5. Step 5: Solve for x
    x = 7,079,614,455.60/92,927.10
  6. Step 6: Final answer
    x = 76,184.61

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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.