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Finding the Fourth Proportional to 158,574.80, 218,843.34 and 104,765.42

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Solution

The fourth proportional to 158,574.80, 218,843.34 and 104,765.42 is: 144,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,574.80 : 218,843.34 = 104,765.42 : x
  2. Step 2: Convert to fraction form
    158,574.80/218,843.34 = 104,765.42/x
  3. Step 3: Cross multiply
    158,574.80x = 218,843.34 × 104,765.42
  4. Step 4: Simplify right side
    158,574.80x = 22,927,214,429.30
  5. Step 5: Solve for x
    x = 22,927,214,429.30/158,574.80
  6. Step 6: Final answer
    x = 144,582.96

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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.