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Finding the Fourth Proportional to 169,509.59, 254,172.11 and 51,165.55

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Solution

The fourth proportional to 169,509.59, 254,172.11 and 51,165.55 is: 76,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,509.59 : 254,172.11 = 51,165.55 : x
  2. Step 2: Convert to fraction form
    169,509.59/254,172.11 = 51,165.55/x
  3. Step 3: Cross multiply
    169,509.59x = 254,172.11 × 51,165.55
  4. Step 4: Simplify right side
    169,509.59x = 13,004,854,911.55
  5. Step 5: Solve for x
    x = 13,004,854,911.55/169,509.59
  6. Step 6: Final answer
    x = 76,720.47

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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.