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Finding the Fourth Proportional to 454,173.12, 680,836.08 and 154,448.88

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Solution

The fourth proportional to 454,173.12, 680,836.08 and 154,448.88 is: 231,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,173.12 : 680,836.08 = 154,448.88 : x
  2. Step 2: Convert to fraction form
    454,173.12/680,836.08 = 154,448.88/x
  3. Step 3: Cross multiply
    454,173.12x = 680,836.08 × 154,448.88
  4. Step 4: Simplify right side
    454,173.12x = 105,154,370,019.59
  5. Step 5: Solve for x
    x = 105,154,370,019.59/454,173.12
  6. Step 6: Final answer
    x = 231,529.27

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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.