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Finding the Fourth Proportional to 350,721.60, 525,693.60 and 193,063.20

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Solution

The fourth proportional to 350,721.60, 525,693.60 and 193,063.20 is: 289,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,721.60 : 525,693.60 = 193,063.20 : x
  2. Step 2: Convert to fraction form
    350,721.60/525,693.60 = 193,063.20/x
  3. Step 3: Cross multiply
    350,721.60x = 525,693.60 × 193,063.20
  4. Step 4: Simplify right side
    350,721.60x = 101,492,088,635.52
  5. Step 5: Solve for x
    x = 101,492,088,635.52/350,721.60
  6. Step 6: Final answer
    x = 289,380.78

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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.