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Finding the Fourth Proportional to 247,105.86, 340,996.91 and 133,926.18

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Solution

The fourth proportional to 247,105.86, 340,996.91 and 133,926.18 is: 184,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,105.86 : 340,996.91 = 133,926.18 : x
  2. Step 2: Convert to fraction form
    247,105.86/340,996.91 = 133,926.18/x
  3. Step 3: Cross multiply
    247,105.86x = 340,996.91 × 133,926.18
  4. Step 4: Simplify right side
    247,105.86x = 45,668,412,878.47
  5. Step 5: Solve for x
    x = 45,668,412,878.47/247,105.86
  6. Step 6: Final answer
    x = 184,813.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.