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Finding the Fourth Proportional to 229,781.45, 344,671.99 and 69,858.69

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Solution

The fourth proportional to 229,781.45, 344,671.99 and 69,858.69 is: 104,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,781.45 : 344,671.99 = 69,858.69 : x
  2. Step 2: Convert to fraction form
    229,781.45/344,671.99 = 69,858.69/x
  3. Step 3: Cross multiply
    229,781.45x = 344,671.99 × 69,858.69
  4. Step 4: Simplify right side
    229,781.45x = 24,078,333,701.09
  5. Step 5: Solve for x
    x = 24,078,333,701.09/229,781.45
  6. Step 6: Final answer
    x = 104,787.98

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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.