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Finding the Fourth Proportional to 313,771.08, 470,714.94 and 103,423.88

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Solution

The fourth proportional to 313,771.08, 470,714.94 and 103,423.88 is: 155,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,771.08 : 470,714.94 = 103,423.88 : x
  2. Step 2: Convert to fraction form
    313,771.08/470,714.94 = 103,423.88/x
  3. Step 3: Cross multiply
    313,771.08x = 470,714.94 × 103,423.88
  4. Step 4: Simplify right side
    313,771.08x = 48,683,165,468.77
  5. Step 5: Solve for x
    x = 48,683,165,468.77/313,771.08
  6. Step 6: Final answer
    x = 155,155.04

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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.