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Finding the Fourth Proportional to 634,147.61, 951,210.44 and 213,423.48

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Solution

The fourth proportional to 634,147.61, 951,210.44 and 213,423.48 is: 320,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,147.61 : 951,210.44 = 213,423.48 : x
  2. Step 2: Convert to fraction form
    634,147.61/951,210.44 = 213,423.48/x
  3. Step 3: Cross multiply
    634,147.61x = 951,210.44 × 213,423.48
  4. Step 4: Simplify right side
    634,147.61x = 203,010,642,317.13
  5. Step 5: Solve for x
    x = 203,010,642,317.13/634,147.61
  6. Step 6: Final answer
    x = 320,131.53

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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.