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Finding the Fourth Proportional to 192,476.56, 288,773.16 and 87,267.28

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Solution

The fourth proportional to 192,476.56, 288,773.16 and 87,267.28 is: 130,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,476.56 : 288,773.16 = 87,267.28 : x
  2. Step 2: Convert to fraction form
    192,476.56/288,773.16 = 87,267.28/x
  3. Step 3: Cross multiply
    192,476.56x = 288,773.16 × 87,267.28
  4. Step 4: Simplify right side
    192,476.56x = 25,200,448,210.20
  5. Step 5: Solve for x
    x = 25,200,448,210.20/192,476.56
  6. Step 6: Final answer
    x = 130,927.36

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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.