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Finding the Fourth Proportional to 547,675.90, 821,591.60 and 168,628.14

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Solution

The fourth proportional to 547,675.90, 821,591.60 and 168,628.14 is: 252,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,675.90 : 821,591.60 = 168,628.14 : x
  2. Step 2: Convert to fraction form
    547,675.90/821,591.60 = 168,628.14/x
  3. Step 3: Cross multiply
    547,675.90x = 821,591.60 × 168,628.14
  4. Step 4: Simplify right side
    547,675.90x = 138,543,460,668.02
  5. Step 5: Solve for x
    x = 138,543,460,668.02/547,675.90
  6. Step 6: Final answer
    x = 252,966.15

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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.