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Finding the Fourth Proportional to 202,912.90, 304,110.15 and 155,932.90

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Solution

The fourth proportional to 202,912.90, 304,110.15 and 155,932.90 is: 233,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,912.90 : 304,110.15 = 155,932.90 : x
  2. Step 2: Convert to fraction form
    202,912.90/304,110.15 = 155,932.90/x
  3. Step 3: Cross multiply
    202,912.90x = 304,110.15 × 155,932.90
  4. Step 4: Simplify right side
    202,912.90x = 47,420,777,608.94
  5. Step 5: Solve for x
    x = 47,420,777,608.94/202,912.90
  6. Step 6: Final answer
    x = 233,700.16

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1.5x scale

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.