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Finding the Fourth Proportional to 479,046.78, 718,372.47 and 163,529.10

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Solution

The fourth proportional to 479,046.78, 718,372.47 and 163,529.10 is: 245,226.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,046.78 : 718,372.47 = 163,529.10 : x
  2. Step 2: Convert to fraction form
    479,046.78/718,372.47 = 163,529.10/x
  3. Step 3: Cross multiply
    479,046.78x = 718,372.47 × 163,529.10
  4. Step 4: Simplify right side
    479,046.78x = 117,474,803,483.88
  5. Step 5: Solve for x
    x = 117,474,803,483.88/479,046.78
  6. Step 6: Final answer
    x = 245,226.16

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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.