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Finding the Fourth Proportional to 400,279.59, 600,253.34 and 147,574.44

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Solution

The fourth proportional to 400,279.59, 600,253.34 and 147,574.44 is: 221,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,279.59 : 600,253.34 = 147,574.44 : x
  2. Step 2: Convert to fraction form
    400,279.59/600,253.34 = 147,574.44/x
  3. Step 3: Cross multiply
    400,279.59x = 600,253.34 × 147,574.44
  4. Step 4: Simplify right side
    400,279.59x = 88,582,049,770.76
  5. Step 5: Solve for x
    x = 88,582,049,770.76/400,279.59
  6. Step 6: Final answer
    x = 221,300.44

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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.