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Finding the Fourth Proportional to 119,268, 178,901.52 and 92,992.08

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Solution

The fourth proportional to 119,268, 178,901.52 and 92,992.08 is: 139,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,268 : 178,901.52 = 92,992.08 : x
  2. Step 2: Convert to fraction form
    119,268/178,901.52 = 92,992.08/x
  3. Step 3: Cross multiply
    119,268x = 178,901.52 × 92,992.08
  4. Step 4: Simplify right side
    119,268x = 16,636,424,459.96
  5. Step 5: Solve for x
    x = 16,636,424,459.96/119,268
  6. Step 6: Final answer
    x = 139,487.75

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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.