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Finding the Fourth Proportional to 336,172.89, 504,358.08 and 99,521.72

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Solution

The fourth proportional to 336,172.89, 504,358.08 and 99,521.72 is: 149,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,172.89 : 504,358.08 = 99,521.72 : x
  2. Step 2: Convert to fraction form
    336,172.89/504,358.08 = 99,521.72/x
  3. Step 3: Cross multiply
    336,172.89x = 504,358.08 × 99,521.72
  4. Step 4: Simplify right side
    336,172.89x = 50,194,581,095.71
  5. Step 5: Solve for x
    x = 50,194,581,095.71/336,172.89
  6. Step 6: Final answer
    x = 149,311.81

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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.