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Finding the Fourth Proportional to 278,239.44, 383,914.44 and 176,304.72

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Solution

The fourth proportional to 278,239.44, 383,914.44 and 176,304.72 is: 243,265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,239.44 : 383,914.44 = 176,304.72 : x
  2. Step 2: Convert to fraction form
    278,239.44/383,914.44 = 176,304.72/x
  3. Step 3: Cross multiply
    278,239.44x = 383,914.44 × 176,304.72
  4. Step 4: Simplify right side
    278,239.44x = 67,685,927,848.16
  5. Step 5: Solve for x
    x = 67,685,927,848.16/278,239.44
  6. Step 6: Final answer
    x = 243,265.04

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Why These Related Problems?

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