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Finding the Fourth Proportional to 279,891.29, 386,250.01 and 152,566.88

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Solution

The fourth proportional to 279,891.29, 386,250.01 and 152,566.88 is: 210,542.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,891.29 : 386,250.01 = 152,566.88 : x
  2. Step 2: Convert to fraction form
    279,891.29/386,250.01 = 152,566.88/x
  3. Step 3: Cross multiply
    279,891.29x = 386,250.01 × 152,566.88
  4. Step 4: Simplify right side
    279,891.29x = 58,928,959,509.88
  5. Step 5: Solve for x
    x = 58,928,959,509.88/279,891.29
  6. Step 6: Final answer
    x = 210,542.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.