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Finding the Fourth Proportional to 342,677.45, 514,487.88 and 174,311.73

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Solution

The fourth proportional to 342,677.45, 514,487.88 and 174,311.73 is: 261,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,677.45 : 514,487.88 = 174,311.73 : x
  2. Step 2: Convert to fraction form
    342,677.45/514,487.88 = 174,311.73/x
  3. Step 3: Cross multiply
    342,677.45x = 514,487.88 × 174,311.73
  4. Step 4: Simplify right side
    342,677.45x = 89,681,272,426.83
  5. Step 5: Solve for x
    x = 89,681,272,426.83/342,677.45
  6. Step 6: Final answer
    x = 261,707.54

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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.