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Finding the Fourth Proportional to 225,972.80, 339,088.80 and 155,902.40

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Solution

The fourth proportional to 225,972.80, 339,088.80 and 155,902.40 is: 233,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,972.80 : 339,088.80 = 155,902.40 : x
  2. Step 2: Convert to fraction form
    225,972.80/339,088.80 = 155,902.40/x
  3. Step 3: Cross multiply
    225,972.80x = 339,088.80 × 155,902.40
  4. Step 4: Simplify right side
    225,972.80x = 52,864,757,733.12
  5. Step 5: Solve for x
    x = 52,864,757,733.12/225,972.80
  6. Step 6: Final answer
    x = 233,943.01

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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.