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Finding the Fourth Proportional to 348,286.77, 522,663.17 and 126,670.77

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Solution

The fourth proportional to 348,286.77, 522,663.17 and 126,670.77 is: 190,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,286.77 : 522,663.17 = 126,670.77 : x
  2. Step 2: Convert to fraction form
    348,286.77/522,663.17 = 126,670.77/x
  3. Step 3: Cross multiply
    348,286.77x = 522,663.17 × 126,670.77
  4. Step 4: Simplify right side
    348,286.77x = 66,206,145,561.19
  5. Step 5: Solve for x
    x = 66,206,145,561.19/348,286.77
  6. Step 6: Final answer
    x = 190,090.90

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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.