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Finding the Fourth Proportional to 342,886.62, 514,363.83 and 118,217.55

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Solution

The fourth proportional to 342,886.62, 514,363.83 and 118,217.55 is: 177,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,886.62 : 514,363.83 = 118,217.55 : x
  2. Step 2: Convert to fraction form
    342,886.62/514,363.83 = 118,217.55/x
  3. Step 3: Cross multiply
    342,886.62x = 514,363.83 × 118,217.55
  4. Step 4: Simplify right side
    342,886.62x = 60,806,831,791.22
  5. Step 5: Solve for x
    x = 60,806,831,791.22/342,886.62
  6. Step 6: Final answer
    x = 177,338.01

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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.