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Finding the Fourth Proportional to 181,213.20, 250,106.81 and 104,721.73

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Solution

The fourth proportional to 181,213.20, 250,106.81 and 104,721.73 is: 144,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,213.20 : 250,106.81 = 104,721.73 : x
  2. Step 2: Convert to fraction form
    181,213.20/250,106.81 = 104,721.73/x
  3. Step 3: Cross multiply
    181,213.20x = 250,106.81 × 104,721.73
  4. Step 4: Simplify right side
    181,213.20x = 26,191,616,679.11
  5. Step 5: Solve for x
    x = 26,191,616,679.11/181,213.20
  6. Step 6: Final answer
    x = 144,534.82

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1.5x scale

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.