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Finding the Fourth Proportional to 291,211.47, 436,922.28 and 101,699.69

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Solution

The fourth proportional to 291,211.47, 436,922.28 and 101,699.69 is: 152,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,211.47 : 436,922.28 = 101,699.69 : x
  2. Step 2: Convert to fraction form
    291,211.47/436,922.28 = 101,699.69/x
  3. Step 3: Cross multiply
    291,211.47x = 436,922.28 × 101,699.69
  4. Step 4: Simplify right side
    291,211.47x = 44,434,858,245.48
  5. Step 5: Solve for x
    x = 44,434,858,245.48/291,211.47
  6. Step 6: Final answer
    x = 152,586.22

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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.