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Finding the Fourth Proportional to 178,081.19, 266,697.74 and 103,043.19

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Solution

The fourth proportional to 178,081.19, 266,697.74 and 103,043.19 is: 154,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,081.19 : 266,697.74 = 103,043.19 : x
  2. Step 2: Convert to fraction form
    178,081.19/266,697.74 = 103,043.19/x
  3. Step 3: Cross multiply
    178,081.19x = 266,697.74 × 103,043.19
  4. Step 4: Simplify right side
    178,081.19x = 27,481,385,380.17
  5. Step 5: Solve for x
    x = 27,481,385,380.17/178,081.19
  6. Step 6: Final answer
    x = 154,319.42

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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.