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Finding the Fourth Proportional to 108,859.83, 163,331.73 and 42,346.82

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Solution

The fourth proportional to 108,859.83, 163,331.73 and 42,346.82 is: 63,536.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,859.83 : 163,331.73 = 42,346.82 : x
  2. Step 2: Convert to fraction form
    108,859.83/163,331.73 = 42,346.82/x
  3. Step 3: Cross multiply
    108,859.83x = 163,331.73 × 42,346.82
  4. Step 4: Simplify right side
    108,859.83x = 6,916,578,553.94
  5. Step 5: Solve for x
    x = 6,916,578,553.94/108,859.83
  6. Step 6: Final answer
    x = 63,536.55

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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.