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Finding the Fourth Proportional to 334,996.70, 502,495.05 and 147,911.90

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Solution

The fourth proportional to 334,996.70, 502,495.05 and 147,911.90 is: 221,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,996.70 : 502,495.05 = 147,911.90 : x
  2. Step 2: Convert to fraction form
    334,996.70/502,495.05 = 147,911.90/x
  3. Step 3: Cross multiply
    334,996.70x = 502,495.05 × 147,911.90
  4. Step 4: Simplify right side
    334,996.70x = 74,324,997,586.10
  5. Step 5: Solve for x
    x = 74,324,997,586.10/334,996.70
  6. Step 6: Final answer
    x = 221,867.85

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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.