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Finding the Fourth Proportional to 108,709.40, 163,046.62 and 29,805.32

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Solution

The fourth proportional to 108,709.40, 163,046.62 and 29,805.32 is: 44,703.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,709.40 : 163,046.62 = 29,805.32 : x
  2. Step 2: Convert to fraction form
    108,709.40/163,046.62 = 29,805.32/x
  3. Step 3: Cross multiply
    108,709.40x = 163,046.62 × 29,805.32
  4. Step 4: Simplify right side
    108,709.40x = 4,859,656,684.02
  5. Step 5: Solve for x
    x = 4,859,656,684.02/108,709.40
  6. Step 6: Final answer
    x = 44,703.19

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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.