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Finding the Fourth Proportional to 437,115.98, 655,711.11 and 121,572.89

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Solution

The fourth proportional to 437,115.98, 655,711.11 and 121,572.89 is: 182,369.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,115.98 : 655,711.11 = 121,572.89 : x
  2. Step 2: Convert to fraction form
    437,115.98/655,711.11 = 121,572.89/x
  3. Step 3: Cross multiply
    437,115.98x = 655,711.11 × 121,572.89
  4. Step 4: Simplify right side
    437,115.98x = 79,716,696,287.09
  5. Step 5: Solve for x
    x = 79,716,696,287.09/437,115.98
  6. Step 6: Final answer
    x = 182,369.67

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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.