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Finding the Fourth Proportional to 170,462.34, 255,781.14 and 130,736.53

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Solution

The fourth proportional to 170,462.34, 255,781.14 and 130,736.53 is: 196,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,462.34 : 255,781.14 = 130,736.53 : x
  2. Step 2: Convert to fraction form
    170,462.34/255,781.14 = 130,736.53/x
  3. Step 3: Cross multiply
    170,462.34x = 255,781.14 × 130,736.53
  4. Step 4: Simplify right side
    170,462.34x = 33,439,936,750.46
  5. Step 5: Solve for x
    x = 33,439,936,750.46/170,462.34
  6. Step 6: Final answer
    x = 196,172.00

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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.