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Finding the Fourth Proportional to 202,505.62, 279,446.17 and 120,925.93

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Solution

The fourth proportional to 202,505.62, 279,446.17 and 120,925.93 is: 166,870.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,505.62 : 279,446.17 = 120,925.93 : x
  2. Step 2: Convert to fraction form
    202,505.62/279,446.17 = 120,925.93/x
  3. Step 3: Cross multiply
    202,505.62x = 279,446.17 × 120,925.93
  4. Step 4: Simplify right side
    202,505.62x = 33,792,287,096.04
  5. Step 5: Solve for x
    x = 33,792,287,096.04/202,505.62
  6. Step 6: Final answer
    x = 166,870.86

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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.