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Finding the Fourth Proportional to 342,169.80, 513,254.70 and 92,851.80

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Solution

The fourth proportional to 342,169.80, 513,254.70 and 92,851.80 is: 139,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,169.80 : 513,254.70 = 92,851.80 : x
  2. Step 2: Convert to fraction form
    342,169.80/513,254.70 = 92,851.80/x
  3. Step 3: Cross multiply
    342,169.80x = 513,254.70 × 92,851.80
  4. Step 4: Simplify right side
    342,169.80x = 47,656,622,753.46
  5. Step 5: Solve for x
    x = 47,656,622,753.46/342,169.80
  6. Step 6: Final answer
    x = 139,277.70

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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.