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Finding the Fourth Proportional to 453,066.40, 679,167.60 and 168,680.80

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Solution

The fourth proportional to 453,066.40, 679,167.60 and 168,680.80 is: 252,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,066.40 : 679,167.60 = 168,680.80 : x
  2. Step 2: Convert to fraction form
    453,066.40/679,167.60 = 168,680.80/x
  3. Step 3: Cross multiply
    453,066.40x = 679,167.60 × 168,680.80
  4. Step 4: Simplify right side
    453,066.40x = 114,562,534,102.08
  5. Step 5: Solve for x
    x = 114,562,534,102.08/453,066.40
  6. Step 6: Final answer
    x = 252,860.36

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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.