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Finding the Fourth Proportional to 436,699.94, 655,050.22 and 121,157.14

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Solution

The fourth proportional to 436,699.94, 655,050.22 and 121,157.14 is: 181,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,699.94 : 655,050.22 = 121,157.14 : x
  2. Step 2: Convert to fraction form
    436,699.94/655,050.22 = 121,157.14/x
  3. Step 3: Cross multiply
    436,699.94x = 655,050.22 × 121,157.14
  4. Step 4: Simplify right side
    436,699.94x = 79,364,011,211.57
  5. Step 5: Solve for x
    x = 79,364,011,211.57/436,699.94
  6. Step 6: Final answer
    x = 181,735.80

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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.