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Finding the Fourth Proportional to 336,019.80, 504,018.90 and 111,390.60

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Solution

The fourth proportional to 336,019.80, 504,018.90 and 111,390.60 is: 167,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,019.80 : 504,018.90 = 111,390.60 : x
  2. Step 2: Convert to fraction form
    336,019.80/504,018.90 = 111,390.60/x
  3. Step 3: Cross multiply
    336,019.80x = 504,018.90 × 111,390.60
  4. Step 4: Simplify right side
    336,019.80x = 56,142,967,682.34
  5. Step 5: Solve for x
    x = 56,142,967,682.34/336,019.80
  6. Step 6: Final answer
    x = 167,082.32

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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.