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Finding the Fourth Proportional to 243,651.79, 365,158.49 and 117,040.12

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Solution

The fourth proportional to 243,651.79, 365,158.49 and 117,040.12 is: 175,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,651.79 : 365,158.49 = 117,040.12 : x
  2. Step 2: Convert to fraction form
    243,651.79/365,158.49 = 117,040.12/x
  3. Step 3: Cross multiply
    243,651.79x = 365,158.49 × 117,040.12
  4. Step 4: Simplify right side
    243,651.79x = 42,738,193,561.77
  5. Step 5: Solve for x
    x = 42,738,193,561.77/243,651.79
  6. Step 6: Final answer
    x = 175,406.86

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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.