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Finding the Fourth Proportional to 629,987.30, 944,984.73 and 156,672.68

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Solution

The fourth proportional to 629,987.30, 944,984.73 and 156,672.68 is: 235,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,987.30 : 944,984.73 = 156,672.68 : x
  2. Step 2: Convert to fraction form
    629,987.30/944,984.73 = 156,672.68/x
  3. Step 3: Cross multiply
    629,987.30x = 944,984.73 × 156,672.68
  4. Step 4: Simplify right side
    629,987.30x = 148,053,290,208.18
  5. Step 5: Solve for x
    x = 148,053,290,208.18/629,987.30
  6. Step 6: Final answer
    x = 235,009.96

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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.