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Finding the Fourth Proportional to 440,766.59, 661,097.90 and 120,950.80

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Solution

The fourth proportional to 440,766.59, 661,097.90 and 120,950.80 is: 181,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,766.59 : 661,097.90 = 120,950.80 : x
  2. Step 2: Convert to fraction form
    440,766.59/661,097.90 = 120,950.80/x
  3. Step 3: Cross multiply
    440,766.59x = 661,097.90 × 120,950.80
  4. Step 4: Simplify right side
    440,766.59x = 79,960,318,532.95
  5. Step 5: Solve for x
    x = 79,960,318,532.95/440,766.59
  6. Step 6: Final answer
    x = 181,411.93

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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.