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Finding the Fourth Proportional to 198,693.66, 274,100.83 and 118,064.10

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Solution

The fourth proportional to 198,693.66, 274,100.83 and 118,064.10 is: 162,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,693.66 : 274,100.83 = 118,064.10 : x
  2. Step 2: Convert to fraction form
    198,693.66/274,100.83 = 118,064.10/x
  3. Step 3: Cross multiply
    198,693.66x = 274,100.83 × 118,064.10
  4. Step 4: Simplify right side
    198,693.66x = 32,361,466,994.10
  5. Step 5: Solve for x
    x = 32,361,466,994.10/198,693.66
  6. Step 6: Final answer
    x = 162,871.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.