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Finding the Fourth Proportional to 169,811.85, 234,342.78 and 93,338.02

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Solution

The fourth proportional to 169,811.85, 234,342.78 and 93,338.02 is: 128,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,811.85 : 234,342.78 = 93,338.02 : x
  2. Step 2: Convert to fraction form
    169,811.85/234,342.78 = 93,338.02/x
  3. Step 3: Cross multiply
    169,811.85x = 234,342.78 × 93,338.02
  4. Step 4: Simplify right side
    169,811.85x = 21,873,089,914.78
  5. Step 5: Solve for x
    x = 21,873,089,914.78/169,811.85
  6. Step 6: Final answer
    x = 128,807.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.