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Finding the Fourth Proportional to 423,199.50, 634,791.90 and 170,473.53

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Solution

The fourth proportional to 423,199.50, 634,791.90 and 170,473.53 is: 255,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,199.50 : 634,791.90 = 170,473.53 : x
  2. Step 2: Convert to fraction form
    423,199.50/634,791.90 = 170,473.53/x
  3. Step 3: Cross multiply
    423,199.50x = 634,791.90 × 170,473.53
  4. Step 4: Simplify right side
    423,199.50x = 108,215,216,008.41
  5. Step 5: Solve for x
    x = 108,215,216,008.41/423,199.50
  6. Step 6: Final answer
    x = 255,707.33

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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.