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Finding the Fourth Proportional to 445,197.09, 667,802.96 and 125,356.66

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Solution

The fourth proportional to 445,197.09, 667,802.96 and 125,356.66 is: 188,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,197.09 : 667,802.96 = 125,356.66 : x
  2. Step 2: Convert to fraction form
    445,197.09/667,802.96 = 125,356.66/x
  3. Step 3: Cross multiply
    445,197.09x = 667,802.96 × 125,356.66
  4. Step 4: Simplify right side
    445,197.09x = 83,713,550,181.34
  5. Step 5: Solve for x
    x = 83,713,550,181.34/445,197.09
  6. Step 6: Final answer
    x = 188,037.06

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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.