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Finding the Fourth Proportional to 348,714.80, 523,072.20 and 112,081.40

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Solution

The fourth proportional to 348,714.80, 523,072.20 and 112,081.40 is: 168,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,714.80 : 523,072.20 = 112,081.40 : x
  2. Step 2: Convert to fraction form
    348,714.80/523,072.20 = 112,081.40/x
  3. Step 3: Cross multiply
    348,714.80x = 523,072.20 × 112,081.40
  4. Step 4: Simplify right side
    348,714.80x = 58,626,664,477.08
  5. Step 5: Solve for x
    x = 58,626,664,477.08/348,714.80
  6. Step 6: Final answer
    x = 168,122.10

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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.