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Finding the Fourth Proportional to 350,419.20, 525,812.40 and 160,936.80

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Solution

The fourth proportional to 350,419.20, 525,812.40 and 160,936.80 is: 241,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,419.20 : 525,812.40 = 160,936.80 : x
  2. Step 2: Convert to fraction form
    350,419.20/525,812.40 = 160,936.80/x
  3. Step 3: Cross multiply
    350,419.20x = 525,812.40 × 160,936.80
  4. Step 4: Simplify right side
    350,419.20x = 84,622,565,056.32
  5. Step 5: Solve for x
    x = 84,622,565,056.32/350,419.20
  6. Step 6: Final answer
    x = 241,489.52

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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.