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Finding the Fourth Proportional to 350,093.80, 525,140.70 and 172,685.80

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Solution

The fourth proportional to 350,093.80, 525,140.70 and 172,685.80 is: 259,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,093.80 : 525,140.70 = 172,685.80 : x
  2. Step 2: Convert to fraction form
    350,093.80/525,140.70 = 172,685.80/x
  3. Step 3: Cross multiply
    350,093.80x = 525,140.70 × 172,685.80
  4. Step 4: Simplify right side
    350,093.80x = 90,684,341,892.06
  5. Step 5: Solve for x
    x = 90,684,341,892.06/350,093.80
  6. Step 6: Final answer
    x = 259,028.70

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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.