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Finding the Fourth Proportional to 198,460.80, 273,870.72 and 117,888.48

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Solution

The fourth proportional to 198,460.80, 273,870.72 and 117,888.48 is: 162,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,460.80 : 273,870.72 = 117,888.48 : x
  2. Step 2: Convert to fraction form
    198,460.80/273,870.72 = 117,888.48/x
  3. Step 3: Cross multiply
    198,460.80x = 273,870.72 × 117,888.48
  4. Step 4: Simplify right side
    198,460.80x = 32,286,202,897.31
  5. Step 5: Solve for x
    x = 32,286,202,897.31/198,460.80
  6. Step 6: Final answer
    x = 162,683.02

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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.