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Finding the Fourth Proportional to 342,692.76, 514,153.96 and 118,208.15

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Solution

The fourth proportional to 342,692.76, 514,153.96 and 118,208.15 is: 177,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,692.76 : 514,153.96 = 118,208.15 : x
  2. Step 2: Convert to fraction form
    342,692.76/514,153.96 = 118,208.15/x
  3. Step 3: Cross multiply
    342,692.76x = 514,153.96 × 118,208.15
  4. Step 4: Simplify right side
    342,692.76x = 60,777,185,560.48
  5. Step 5: Solve for x
    x = 60,777,185,560.48/342,692.76
  6. Step 6: Final answer
    x = 177,351.82

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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.