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Finding the Fourth Proportional to 119,025.76, 164,254.93 and 67,345.12

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Solution

The fourth proportional to 119,025.76, 164,254.93 and 67,345.12 is: 92,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,025.76 : 164,254.93 = 67,345.12 : x
  2. Step 2: Convert to fraction form
    119,025.76/164,254.93 = 67,345.12/x
  3. Step 3: Cross multiply
    119,025.76x = 164,254.93 × 67,345.12
  4. Step 4: Simplify right side
    119,025.76x = 11,061,766,813.44
  5. Step 5: Solve for x
    x = 11,061,766,813.44/119,025.76
  6. Step 6: Final answer
    x = 92,935.91

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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.