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Finding the Fourth Proportional to 178,364.40, 267,319.80 and 73,064.40

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Solution

The fourth proportional to 178,364.40, 267,319.80 and 73,064.40 is: 109,503.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,364.40 : 267,319.80 = 73,064.40 : x
  2. Step 2: Convert to fraction form
    178,364.40/267,319.80 = 73,064.40/x
  3. Step 3: Cross multiply
    178,364.40x = 267,319.80 × 73,064.40
  4. Step 4: Simplify right side
    178,364.40x = 19,531,560,795.12
  5. Step 5: Solve for x
    x = 19,531,560,795.12/178,364.40
  6. Step 6: Final answer
    x = 109,503.69

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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.