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Finding the Fourth Proportional to 108,661.80, 163,039.48 and 58,776.96

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Solution

The fourth proportional to 108,661.80, 163,039.48 and 58,776.96 is: 88,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,661.80 : 163,039.48 = 58,776.96 : x
  2. Step 2: Convert to fraction form
    108,661.80/163,039.48 = 58,776.96/x
  3. Step 3: Cross multiply
    108,661.80x = 163,039.48 × 58,776.96
  4. Step 4: Simplify right side
    108,661.80x = 9,582,964,994.38
  5. Step 5: Solve for x
    x = 9,582,964,994.38/108,661.80
  6. Step 6: Final answer
    x = 88,190.74

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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.