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Finding the Fourth Proportional to 436,656, 654,983.88 and 121,112.94

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Solution

The fourth proportional to 436,656, 654,983.88 and 121,112.94 is: 181,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,656 : 654,983.88 = 121,112.94 : x
  2. Step 2: Convert to fraction form
    436,656/654,983.88 = 121,112.94/x
  3. Step 3: Cross multiply
    436,656x = 654,983.88 × 121,112.94
  4. Step 4: Simplify right side
    436,656x = 79,327,023,359.41
  5. Step 5: Solve for x
    x = 79,327,023,359.41/436,656
  6. Step 6: Final answer
    x = 181,669.38

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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.