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Finding the Fourth Proportional to 349,959.22, 525,021.95 and 113,301.78

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Solution

The fourth proportional to 349,959.22, 525,021.95 and 113,301.78 is: 169,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,959.22 : 525,021.95 = 113,301.78 : x
  2. Step 2: Convert to fraction form
    349,959.22/525,021.95 = 113,301.78/x
  3. Step 3: Cross multiply
    349,959.22x = 525,021.95 × 113,301.78
  4. Step 4: Simplify right side
    349,959.22x = 59,485,921,474.07
  5. Step 5: Solve for x
    x = 59,485,921,474.07/349,959.22
  6. Step 6: Final answer
    x = 169,979.58

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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.