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Finding the Fourth Proportional to 220,643.70, 330,853.23 and 108,332.34

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Solution

The fourth proportional to 220,643.70, 330,853.23 and 108,332.34 is: 162,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,643.70 : 330,853.23 = 108,332.34 : x
  2. Step 2: Convert to fraction form
    220,643.70/330,853.23 = 108,332.34/x
  3. Step 3: Cross multiply
    220,643.70x = 330,853.23 × 108,332.34
  4. Step 4: Simplify right side
    220,643.70x = 35,842,104,602.46
  5. Step 5: Solve for x
    x = 35,842,104,602.46/220,643.70
  6. Step 6: Final answer
    x = 162,443.36

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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.