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Finding the Fourth Proportional to 108,802.90, 163,202.19 and 71,597.98

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Solution

The fourth proportional to 108,802.90, 163,202.19 and 71,597.98 is: 107,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,802.90 : 163,202.19 = 71,597.98 : x
  2. Step 2: Convert to fraction form
    108,802.90/163,202.19 = 71,597.98/x
  3. Step 3: Cross multiply
    108,802.90x = 163,202.19 × 71,597.98
  4. Step 4: Simplify right side
    108,802.90x = 11,684,947,135.58
  5. Step 5: Solve for x
    x = 11,684,947,135.58/108,802.90
  6. Step 6: Final answer
    x = 107,395.55

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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.