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Finding the Fourth Proportional to 108,663.84, 163,042.50 and 58,779

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Solution

The fourth proportional to 108,663.84, 163,042.50 and 58,779 is: 88,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.84 : 163,042.50 = 58,779 : x
  2. Step 2: Convert to fraction form
    108,663.84/163,042.50 = 58,779/x
  3. Step 3: Cross multiply
    108,663.84x = 163,042.50 × 58,779
  4. Step 4: Simplify right side
    108,663.84x = 9,583,475,107.50
  5. Step 5: Solve for x
    x = 9,583,475,107.50/108,663.84
  6. Step 6: Final answer
    x = 88,193.78

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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.