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Finding the Fourth Proportional to 250,435.62, 375,816.24 and 108,419.40

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Solution

The fourth proportional to 250,435.62, 375,816.24 and 108,419.40 is: 162,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,435.62 : 375,816.24 = 108,419.40 : x
  2. Step 2: Convert to fraction form
    250,435.62/375,816.24 = 108,419.40/x
  3. Step 3: Cross multiply
    250,435.62x = 375,816.24 × 108,419.40
  4. Step 4: Simplify right side
    250,435.62x = 40,745,771,251.06
  5. Step 5: Solve for x
    x = 40,745,771,251.06/250,435.62
  6. Step 6: Final answer
    x = 162,699.58

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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.