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Finding the Fourth Proportional to 337,128.14, 505,711.63 and 126,767.90

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Solution

The fourth proportional to 337,128.14, 505,711.63 and 126,767.90 is: 190,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,128.14 : 505,711.63 = 126,767.90 : x
  2. Step 2: Convert to fraction form
    337,128.14/505,711.63 = 126,767.90/x
  3. Step 3: Cross multiply
    337,128.14x = 505,711.63 × 126,767.90
  4. Step 4: Simplify right side
    337,128.14x = 64,107,998,495.20
  5. Step 5: Solve for x
    x = 64,107,998,495.20/337,128.14
  6. Step 6: Final answer
    x = 190,159.15

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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.