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Finding the Fourth Proportional to 496,679.36, 745,026.17 and 141,693.41

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Solution

The fourth proportional to 496,679.36, 745,026.17 and 141,693.41 is: 212,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,679.36 : 745,026.17 = 141,693.41 : x
  2. Step 2: Convert to fraction form
    496,679.36/745,026.17 = 141,693.41/x
  3. Step 3: Cross multiply
    496,679.36x = 745,026.17 × 141,693.41
  4. Step 4: Simplify right side
    496,679.36x = 105,565,299,720.64
  5. Step 5: Solve for x
    x = 105,565,299,720.64/496,679.36
  6. Step 6: Final answer
    x = 212,542.15

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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.