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Finding the Fourth Proportional to 205,763.17, 308,674.33 and 63,619.53

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Solution

The fourth proportional to 205,763.17, 308,674.33 and 63,619.53 is: 95,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,763.17 : 308,674.33 = 63,619.53 : x
  2. Step 2: Convert to fraction form
    205,763.17/308,674.33 = 63,619.53/x
  3. Step 3: Cross multiply
    205,763.17x = 308,674.33 × 63,619.53
  4. Step 4: Simplify right side
    205,763.17x = 19,637,714,095.24
  5. Step 5: Solve for x
    x = 19,637,714,095.24/205,763.17
  6. Step 6: Final answer
    x = 95,438.43

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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.