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Finding the Fourth Proportional to 547,090.66, 820,677.48 and 147,725.62

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Solution

The fourth proportional to 547,090.66, 820,677.48 and 147,725.62 is: 221,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,090.66 : 820,677.48 = 147,725.62 : x
  2. Step 2: Convert to fraction form
    547,090.66/820,677.48 = 147,725.62/x
  3. Step 3: Cross multiply
    547,090.66x = 820,677.48 × 147,725.62
  4. Step 4: Simplify right side
    547,090.66x = 121,235,089,553.04
  5. Step 5: Solve for x
    x = 121,235,089,553.04/547,090.66
  6. Step 6: Final answer
    x = 221,599.63

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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.