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Finding the Fourth Proportional to 119,482.56, 164,941.92 and 69,171.84

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Solution

The fourth proportional to 119,482.56, 164,941.92 and 69,171.84 is: 95,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,482.56 : 164,941.92 = 69,171.84 : x
  2. Step 2: Convert to fraction form
    119,482.56/164,941.92 = 69,171.84/x
  3. Step 3: Cross multiply
    119,482.56x = 164,941.92 × 69,171.84
  4. Step 4: Simplify right side
    119,482.56x = 11,409,336,099.53
  5. Step 5: Solve for x
    x = 11,409,336,099.53/119,482.56
  6. Step 6: Final answer
    x = 95,489.55

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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.