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Finding the Fourth Proportional to 109,628.48, 151,287.75 and 59,327.48

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Solution

The fourth proportional to 109,628.48, 151,287.75 and 59,327.48 is: 81,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,628.48 : 151,287.75 = 59,327.48 : x
  2. Step 2: Convert to fraction form
    109,628.48/151,287.75 = 59,327.48/x
  3. Step 3: Cross multiply
    109,628.48x = 151,287.75 × 59,327.48
  4. Step 4: Simplify right side
    109,628.48x = 8,975,521,340.59
  5. Step 5: Solve for x
    x = 8,975,521,340.59/109,628.48
  6. Step 6: Final answer
    x = 81,872.17

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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.