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Finding the Fourth Proportional to 479,226.48, 718,569.90 and 159,207

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Solution

The fourth proportional to 479,226.48, 718,569.90 and 159,207 is: 238,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,226.48 : 718,569.90 = 159,207 : x
  2. Step 2: Convert to fraction form
    479,226.48/718,569.90 = 159,207/x
  3. Step 3: Cross multiply
    479,226.48x = 718,569.90 × 159,207
  4. Step 4: Simplify right side
    479,226.48x = 114,401,358,069.30
  5. Step 5: Solve for x
    x = 114,401,358,069.30/479,226.48
  6. Step 6: Final answer
    x = 238,720.86

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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.