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Finding the Fourth Proportional to 108,802.53, 163,086.08 and 45,656.96

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Solution

The fourth proportional to 108,802.53, 163,086.08 and 45,656.96 is: 68,436.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,802.53 : 163,086.08 = 45,656.96 : x
  2. Step 2: Convert to fraction form
    108,802.53/163,086.08 = 45,656.96/x
  3. Step 3: Cross multiply
    108,802.53x = 163,086.08 × 45,656.96
  4. Step 4: Simplify right side
    108,802.53x = 7,446,013,815.69
  5. Step 5: Solve for x
    x = 7,446,013,815.69/108,802.53
  6. Step 6: Final answer
    x = 68,436.04

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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.