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Finding the Fourth Proportional to 436,219.93, 654,328.90 and 136,723.33

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Solution

The fourth proportional to 436,219.93, 654,328.90 and 136,723.33 is: 205,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,219.93 : 654,328.90 = 136,723.33 : x
  2. Step 2: Convert to fraction form
    436,219.93/654,328.90 = 136,723.33/x
  3. Step 3: Cross multiply
    436,219.93x = 654,328.90 × 136,723.33
  4. Step 4: Simplify right side
    436,219.93x = 89,462,026,123.24
  5. Step 5: Solve for x
    x = 89,462,026,123.24/436,219.93
  6. Step 6: Final answer
    x = 205,084.68

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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.