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Finding the Fourth Proportional to 291,191.88, 436,527.90 and 113,657.52

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Solution

The fourth proportional to 291,191.88, 436,527.90 and 113,657.52 is: 170,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,191.88 : 436,527.90 = 113,657.52 : x
  2. Step 2: Convert to fraction form
    291,191.88/436,527.90 = 113,657.52/x
  3. Step 3: Cross multiply
    291,191.88x = 436,527.90 × 113,657.52
  4. Step 4: Simplify right side
    291,191.88x = 49,614,678,524.81
  5. Step 5: Solve for x
    x = 49,614,678,524.81/291,191.88
  6. Step 6: Final answer
    x = 170,384.83

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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.