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Finding the Fourth Proportional to 339,212.40, 508,892.40 and 102,548.90

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Solution

The fourth proportional to 339,212.40, 508,892.40 and 102,548.90 is: 153,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,212.40 : 508,892.40 = 102,548.90 : x
  2. Step 2: Convert to fraction form
    339,212.40/508,892.40 = 102,548.90/x
  3. Step 3: Cross multiply
    339,212.40x = 508,892.40 × 102,548.90
  4. Step 4: Simplify right side
    339,212.40x = 52,186,355,838.36
  5. Step 5: Solve for x
    x = 52,186,355,838.36/339,212.40
  6. Step 6: Final answer
    x = 153,845.66

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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.