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Finding the Fourth Proportional to 140,595.04, 194,016.54 and 76,928.56

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Solution

The fourth proportional to 140,595.04, 194,016.54 and 76,928.56 is: 106,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,595.04 : 194,016.54 = 76,928.56 : x
  2. Step 2: Convert to fraction form
    140,595.04/194,016.54 = 76,928.56/x
  3. Step 3: Cross multiply
    140,595.04x = 194,016.54 × 76,928.56
  4. Step 4: Simplify right side
    140,595.04x = 14,925,413,038.38
  5. Step 5: Solve for x
    x = 14,925,413,038.38/140,595.04
  6. Step 6: Final answer
    x = 106,158.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.