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Finding the Fourth Proportional to 336,090.60, 503,990.10 and 111,364.20

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Solution

The fourth proportional to 336,090.60, 503,990.10 and 111,364.20 is: 166,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,090.60 : 503,990.10 = 111,364.20 : x
  2. Step 2: Convert to fraction form
    336,090.60/503,990.10 = 111,364.20/x
  3. Step 3: Cross multiply
    336,090.60x = 503,990.10 × 111,364.20
  4. Step 4: Simplify right side
    336,090.60x = 56,126,454,294.42
  5. Step 5: Solve for x
    x = 56,126,454,294.42/336,090.60
  6. Step 6: Final answer
    x = 166,997.99

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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.