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Finding the Fourth Proportional to 291,227.06, 436,662.20 and 113,526.47

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Solution

The fourth proportional to 291,227.06, 436,662.20 and 113,526.47 is: 170,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,227.06 : 436,662.20 = 113,526.47 : x
  2. Step 2: Convert to fraction form
    291,227.06/436,662.20 = 113,526.47/x
  3. Step 3: Cross multiply
    291,227.06x = 436,662.20 × 113,526.47
  4. Step 4: Simplify right side
    291,227.06x = 49,572,715,397.49
  5. Step 5: Solve for x
    x = 49,572,715,397.49/291,227.06
  6. Step 6: Final answer
    x = 170,220.16

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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.