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Finding the Fourth Proportional to 202,912.60, 304,368.90 and 53,152.60

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Solution

The fourth proportional to 202,912.60, 304,368.90 and 53,152.60 is: 79,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,912.60 : 304,368.90 = 53,152.60 : x
  2. Step 2: Convert to fraction form
    202,912.60/304,368.90 = 53,152.60/x
  3. Step 3: Cross multiply
    202,912.60x = 304,368.90 × 53,152.60
  4. Step 4: Simplify right side
    202,912.60x = 16,177,998,394.14
  5. Step 5: Solve for x
    x = 16,177,998,394.14/202,912.60
  6. Step 6: Final answer
    x = 79,728.90

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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.