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Finding the Fourth Proportional to 408,767.28, 613,243.16 and 124,483.28

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Solution

The fourth proportional to 408,767.28, 613,243.16 and 124,483.28 is: 186,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,767.28 : 613,243.16 = 124,483.28 : x
  2. Step 2: Convert to fraction form
    408,767.28/613,243.16 = 124,483.28/x
  3. Step 3: Cross multiply
    408,767.28x = 613,243.16 × 124,483.28
  4. Step 4: Simplify right side
    408,767.28x = 76,338,519,994.36
  5. Step 5: Solve for x
    x = 76,338,519,994.36/408,767.28
  6. Step 6: Final answer
    x = 186,753.01

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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.