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Finding the Fourth Proportional to 479,189.36, 718,870.10 and 163,572.44

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Solution

The fourth proportional to 479,189.36, 718,870.10 and 163,572.44 is: 245,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,189.36 : 718,870.10 = 163,572.44 : x
  2. Step 2: Convert to fraction form
    479,189.36/718,870.10 = 163,572.44/x
  3. Step 3: Cross multiply
    479,189.36x = 718,870.10 × 163,572.44
  4. Step 4: Simplify right side
    479,189.36x = 117,587,336,300.04
  5. Step 5: Solve for x
    x = 117,587,336,300.04/479,189.36
  6. Step 6: Final answer
    x = 245,388.04

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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.