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Finding the Fourth Proportional to 350,111.70, 525,167.55 and 172,964.70

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Solution

The fourth proportional to 350,111.70, 525,167.55 and 172,964.70 is: 259,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,111.70 : 525,167.55 = 172,964.70 : x
  2. Step 2: Convert to fraction form
    350,111.70/525,167.55 = 172,964.70/x
  3. Step 3: Cross multiply
    350,111.70x = 525,167.55 × 172,964.70
  4. Step 4: Simplify right side
    350,111.70x = 90,835,447,735.49
  5. Step 5: Solve for x
    x = 90,835,447,735.49/350,111.70
  6. Step 6: Final answer
    x = 259,447.05

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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.