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Finding the Fourth Proportional to 311,990.51, 468,044.09 and 125,016.59

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Solution

The fourth proportional to 311,990.51, 468,044.09 and 125,016.59 is: 187,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,990.51 : 468,044.09 = 125,016.59 : x
  2. Step 2: Convert to fraction form
    311,990.51/468,044.09 = 125,016.59/x
  3. Step 3: Cross multiply
    311,990.51x = 468,044.09 × 125,016.59
  4. Step 4: Simplify right side
    311,990.51x = 58,513,276,101.45
  5. Step 5: Solve for x
    x = 58,513,276,101.45/311,990.51
  6. Step 6: Final answer
    x = 187,548.26

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1.5x scale

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.