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Finding the Fourth Proportional to 174,426.40, 261,747.60 and 69,234.40

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Solution

The fourth proportional to 174,426.40, 261,747.60 and 69,234.40 is: 103,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,426.40 : 261,747.60 = 69,234.40 : x
  2. Step 2: Convert to fraction form
    174,426.40/261,747.60 = 69,234.40/x
  3. Step 3: Cross multiply
    174,426.40x = 261,747.60 × 69,234.40
  4. Step 4: Simplify right side
    174,426.40x = 18,121,938,037.44
  5. Step 5: Solve for x
    x = 18,121,938,037.44/174,426.40
  6. Step 6: Final answer
    x = 103,894.47

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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.