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Finding the Fourth Proportional to 351,485.88, 527,119.74 and 126,817.14

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Solution

The fourth proportional to 351,485.88, 527,119.74 and 126,817.14 is: 190,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,485.88 : 527,119.74 = 126,817.14 : x
  2. Step 2: Convert to fraction form
    351,485.88/527,119.74 = 126,817.14/x
  3. Step 3: Cross multiply
    351,485.88x = 527,119.74 × 126,817.14
  4. Step 4: Simplify right side
    351,485.88x = 66,847,817,864.34
  5. Step 5: Solve for x
    x = 66,847,817,864.34/351,485.88
  6. Step 6: Final answer
    x = 190,186.35

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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.