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Finding the Fourth Proportional to 178,657.34, 267,635.63 and 103,619.84

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Solution

The fourth proportional to 178,657.34, 267,635.63 and 103,619.84 is: 155,226.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,657.34 : 267,635.63 = 103,619.84 : x
  2. Step 2: Convert to fraction form
    178,657.34/267,635.63 = 103,619.84/x
  3. Step 3: Cross multiply
    178,657.34x = 267,635.63 × 103,619.84
  4. Step 4: Simplify right side
    178,657.34x = 27,732,360,079.77
  5. Step 5: Solve for x
    x = 27,732,360,079.77/178,657.34
  6. Step 6: Final answer
    x = 155,226.54

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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.