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Finding the Fourth Proportional to 479,225.80, 718,838.70 and 146,801.80

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Solution

The fourth proportional to 479,225.80, 718,838.70 and 146,801.80 is: 220,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,225.80 : 718,838.70 = 146,801.80 : x
  2. Step 2: Convert to fraction form
    479,225.80/718,838.70 = 146,801.80/x
  3. Step 3: Cross multiply
    479,225.80x = 718,838.70 × 146,801.80
  4. Step 4: Simplify right side
    479,225.80x = 105,526,815,069.66
  5. Step 5: Solve for x
    x = 105,526,815,069.66/479,225.80
  6. Step 6: Final answer
    x = 220,202.70

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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.