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Finding the Fourth Proportional to 253,906.40, 350,428.20 and 146,455.40

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Solution

The fourth proportional to 253,906.40, 350,428.20 and 146,455.40 is: 202,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,906.40 : 350,428.20 = 146,455.40 : x
  2. Step 2: Convert to fraction form
    253,906.40/350,428.20 = 146,455.40/x
  3. Step 3: Cross multiply
    253,906.40x = 350,428.20 × 146,455.40
  4. Step 4: Simplify right side
    253,906.40x = 51,322,102,202.28
  5. Step 5: Solve for x
    x = 51,322,102,202.28/253,906.40
  6. Step 6: Final answer
    x = 202,130.01

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1.5x scale

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.