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Finding the Fourth Proportional to 349,958.16, 525,020.85 and 113,301.09

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Solution

The fourth proportional to 349,958.16, 525,020.85 and 113,301.09 is: 169,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,958.16 : 525,020.85 = 113,301.09 : x
  2. Step 2: Convert to fraction form
    349,958.16/525,020.85 = 113,301.09/x
  3. Step 3: Cross multiply
    349,958.16x = 525,020.85 × 113,301.09
  4. Step 4: Simplify right side
    349,958.16x = 59,485,434,577.73
  5. Step 5: Solve for x
    x = 59,485,434,577.73/349,958.16
  6. Step 6: Final answer
    x = 169,978.70

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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.