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Finding the Fourth Proportional to 515,782.98, 773,637.84 and 136,695.29

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Solution

The fourth proportional to 515,782.98, 773,637.84 and 136,695.29 is: 205,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,782.98 : 773,637.84 = 136,695.29 : x
  2. Step 2: Convert to fraction form
    515,782.98/773,637.84 = 136,695.29/x
  3. Step 3: Cross multiply
    515,782.98x = 773,637.84 × 136,695.29
  4. Step 4: Simplify right side
    515,782.98x = 105,752,645,025.58
  5. Step 5: Solve for x
    x = 105,752,645,025.58/515,782.98
  6. Step 6: Final answer
    x = 205,033.22

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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.