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Finding the Fourth Proportional to 342,999.17, 514,556.61 and 118,299.50

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Solution

The fourth proportional to 342,999.17, 514,556.61 and 118,299.50 is: 177,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,999.17 : 514,556.61 = 118,299.50 : x
  2. Step 2: Convert to fraction form
    342,999.17/514,556.61 = 118,299.50/x
  3. Step 3: Cross multiply
    342,999.17x = 514,556.61 × 118,299.50
  4. Step 4: Simplify right side
    342,999.17x = 60,871,787,111.91
  5. Step 5: Solve for x
    x = 60,871,787,111.91/342,999.17
  6. Step 6: Final answer
    x = 177,469.20

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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.