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Finding the Fourth Proportional to 260,167.92, 390,252.24 and 73,179.60

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Solution

The fourth proportional to 260,167.92, 390,252.24 and 73,179.60 is: 109,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,167.92 : 390,252.24 = 73,179.60 : x
  2. Step 2: Convert to fraction form
    260,167.92/390,252.24 = 73,179.60/x
  3. Step 3: Cross multiply
    260,167.92x = 390,252.24 × 73,179.60
  4. Step 4: Simplify right side
    260,167.92x = 28,558,502,822.30
  5. Step 5: Solve for x
    x = 28,558,502,822.30/260,167.92
  6. Step 6: Final answer
    x = 109,769.50

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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.