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Finding the Fourth Proportional to 578,781.36, 868,232.22 and 158,057.28

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Solution

The fourth proportional to 578,781.36, 868,232.22 and 158,057.28 is: 237,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,781.36 : 868,232.22 = 158,057.28 : x
  2. Step 2: Convert to fraction form
    578,781.36/868,232.22 = 158,057.28/x
  3. Step 3: Cross multiply
    578,781.36x = 868,232.22 × 158,057.28
  4. Step 4: Simplify right side
    578,781.36x = 137,230,423,101.56
  5. Step 5: Solve for x
    x = 137,230,423,101.56/578,781.36
  6. Step 6: Final answer
    x = 237,102.35

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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.