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Finding the Fourth Proportional to 350,563.40, 525,845.10 and 163,939.40

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Solution

The fourth proportional to 350,563.40, 525,845.10 and 163,939.40 is: 245,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,563.40 : 525,845.10 = 163,939.40 : x
  2. Step 2: Convert to fraction form
    350,563.40/525,845.10 = 163,939.40/x
  3. Step 3: Cross multiply
    350,563.40x = 525,845.10 × 163,939.40
  4. Step 4: Simplify right side
    350,563.40x = 86,206,730,186.94
  5. Step 5: Solve for x
    x = 86,206,730,186.94/350,563.40
  6. Step 6: Final answer
    x = 245,909.10

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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.