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Finding the Fourth Proportional to 346,636.20, 520,100.10 and 188,977.80

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Solution

The fourth proportional to 346,636.20, 520,100.10 and 188,977.80 is: 283,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,636.20 : 520,100.10 = 188,977.80 : x
  2. Step 2: Convert to fraction form
    346,636.20/520,100.10 = 188,977.80/x
  3. Step 3: Cross multiply
    346,636.20x = 520,100.10 × 188,977.80
  4. Step 4: Simplify right side
    346,636.20x = 98,287,372,677.78
  5. Step 5: Solve for x
    x = 98,287,372,677.78/346,636.20
  6. Step 6: Final answer
    x = 283,546.19

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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.