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Finding the Fourth Proportional to 158,063.54, 218,340.69 and 126,458.42

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Solution

The fourth proportional to 158,063.54, 218,340.69 and 126,458.42 is: 174,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,063.54 : 218,340.69 = 126,458.42 : x
  2. Step 2: Convert to fraction form
    158,063.54/218,340.69 = 126,458.42/x
  3. Step 3: Cross multiply
    158,063.54x = 218,340.69 × 126,458.42
  4. Step 4: Simplify right side
    158,063.54x = 27,611,018,679.11
  5. Step 5: Solve for x
    x = 27,611,018,679.11/158,063.54
  6. Step 6: Final answer
    x = 174,683.03

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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.