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Finding the Fourth Proportional to 251,572.80, 377,359.20 and 223,579.20

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Solution

The fourth proportional to 251,572.80, 377,359.20 and 223,579.20 is: 335,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,572.80 : 377,359.20 = 223,579.20 : x
  2. Step 2: Convert to fraction form
    251,572.80/377,359.20 = 223,579.20/x
  3. Step 3: Cross multiply
    251,572.80x = 377,359.20 × 223,579.20
  4. Step 4: Simplify right side
    251,572.80x = 84,369,668,048.64
  5. Step 5: Solve for x
    x = 84,369,668,048.64/251,572.80
  6. Step 6: Final answer
    x = 335,368.80

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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.