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Finding the Fourth Proportional to 479,348.88, 718,764.12 and 146,881.68

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Solution

The fourth proportional to 479,348.88, 718,764.12 and 146,881.68 is: 220,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,348.88 : 718,764.12 = 146,881.68 : x
  2. Step 2: Convert to fraction form
    479,348.88/718,764.12 = 146,881.68/x
  3. Step 3: Cross multiply
    479,348.88x = 718,764.12 × 146,881.68
  4. Step 4: Simplify right side
    479,348.88x = 105,573,281,469.32
  5. Step 5: Solve for x
    x = 105,573,281,469.32/479,348.88
  6. Step 6: Final answer
    x = 220,243.10

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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.