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Finding the Fourth Proportional to 119,286.34, 178,929.56 and 56,060.06

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Solution

The fourth proportional to 119,286.34, 178,929.56 and 56,060.06 is: 84,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,286.34 : 178,929.56 = 56,060.06 : x
  2. Step 2: Convert to fraction form
    119,286.34/178,929.56 = 56,060.06/x
  3. Step 3: Cross multiply
    119,286.34x = 178,929.56 × 56,060.06
  4. Step 4: Simplify right side
    119,286.34x = 10,030,801,869.37
  5. Step 5: Solve for x
    x = 10,030,801,869.37/119,286.34
  6. Step 6: Final answer
    x = 84,090.11

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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.