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Finding the Fourth Proportional to 350,679.60, 525,630.60 and 193,021.20

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Solution

The fourth proportional to 350,679.60, 525,630.60 and 193,021.20 is: 289,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,679.60 : 525,630.60 = 193,021.20 : x
  2. Step 2: Convert to fraction form
    350,679.60/525,630.60 = 193,021.20/x
  3. Step 3: Cross multiply
    350,679.60x = 525,630.60 × 193,021.20
  4. Step 4: Simplify right side
    350,679.60x = 101,457,849,168.72
  5. Step 5: Solve for x
    x = 101,457,849,168.72/350,679.60
  6. Step 6: Final answer
    x = 289,317.80

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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.