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Finding the Fourth Proportional to 170,958.69, 256,208.81 and 133,053.74

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Solution

The fourth proportional to 170,958.69, 256,208.81 and 133,053.74 is: 199,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,958.69 : 256,208.81 = 133,053.74 : x
  2. Step 2: Convert to fraction form
    170,958.69/256,208.81 = 133,053.74/x
  3. Step 3: Cross multiply
    170,958.69x = 256,208.81 × 133,053.74
  4. Step 4: Simplify right side
    170,958.69x = 34,089,539,967.24
  5. Step 5: Solve for x
    x = 34,089,539,967.24/170,958.69
  6. Step 6: Final answer
    x = 199,402.21

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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.