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Finding the Fourth Proportional to 168,824.90, 253,200.90 and 74,054.90

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Solution

The fourth proportional to 168,824.90, 253,200.90 and 74,054.90 is: 111,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,824.90 : 253,200.90 = 74,054.90 : x
  2. Step 2: Convert to fraction form
    168,824.90/253,200.90 = 74,054.90/x
  3. Step 3: Cross multiply
    168,824.90x = 253,200.90 × 74,054.90
  4. Step 4: Simplify right side
    168,824.90x = 18,750,767,329.41
  5. Step 5: Solve for x
    x = 18,750,767,329.41/168,824.90
  6. Step 6: Final answer
    x = 111,066.36

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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.