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Finding the Fourth Proportional to 343,451.20, 515,168.70 and 94,133.20

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Solution

The fourth proportional to 343,451.20, 515,168.70 and 94,133.20 is: 141,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,451.20 : 515,168.70 = 94,133.20 : x
  2. Step 2: Convert to fraction form
    343,451.20/515,168.70 = 94,133.20/x
  3. Step 3: Cross multiply
    343,451.20x = 515,168.70 × 94,133.20
  4. Step 4: Simplify right side
    343,451.20x = 48,494,478,270.84
  5. Step 5: Solve for x
    x = 48,494,478,270.84/343,451.20
  6. Step 6: Final answer
    x = 141,197.58

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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.