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Finding the Fourth Proportional to 272,128.91, 408,230.31 and 94,612.95

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Solution

The fourth proportional to 272,128.91, 408,230.31 and 94,612.95 is: 141,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,128.91 : 408,230.31 = 94,612.95 : x
  2. Step 2: Convert to fraction form
    272,128.91/408,230.31 = 94,612.95/x
  3. Step 3: Cross multiply
    272,128.91x = 408,230.31 × 94,612.95
  4. Step 4: Simplify right side
    272,128.91x = 38,623,873,908.51
  5. Step 5: Solve for x
    x = 38,623,873,908.51/272,128.91
  6. Step 6: Final answer
    x = 141,932.27

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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.