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Finding the Fourth Proportional to 577,371.64, 866,057.88 and 156,647.48

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Solution

The fourth proportional to 577,371.64, 866,057.88 and 156,647.48 is: 234,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,371.64 : 866,057.88 = 156,647.48 : x
  2. Step 2: Convert to fraction form
    577,371.64/866,057.88 = 156,647.48/x
  3. Step 3: Cross multiply
    577,371.64x = 866,057.88 × 156,647.48
  4. Step 4: Simplify right side
    577,371.64x = 135,665,784,436.14
  5. Step 5: Solve for x
    x = 135,665,784,436.14/577,371.64
  6. Step 6: Final answer
    x = 234,971.33

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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.