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Finding the Fourth Proportional to 108,669.60, 163,077.30 and 49,474.80

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Solution

The fourth proportional to 108,669.60, 163,077.30 and 49,474.80 is: 74,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,669.60 : 163,077.30 = 49,474.80 : x
  2. Step 2: Convert to fraction form
    108,669.60/163,077.30 = 49,474.80/x
  3. Step 3: Cross multiply
    108,669.60x = 163,077.30 × 49,474.80
  4. Step 4: Simplify right side
    108,669.60x = 8,068,216,802.04
  5. Step 5: Solve for x
    x = 8,068,216,802.04/108,669.60
  6. Step 6: Final answer
    x = 74,245.39

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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.