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Finding the Fourth Proportional to 158,429.57, 218,632.82 and 94,782.38

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Solution

The fourth proportional to 158,429.57, 218,632.82 and 94,782.38 is: 130,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,429.57 : 218,632.82 = 94,782.38 : x
  2. Step 2: Convert to fraction form
    158,429.57/218,632.82 = 94,782.38/x
  3. Step 3: Cross multiply
    158,429.57x = 218,632.82 × 94,782.38
  4. Step 4: Simplify right side
    158,429.57x = 20,722,537,458.64
  5. Step 5: Solve for x
    x = 20,722,537,458.64/158,429.57
  6. Step 6: Final answer
    x = 130,799.69

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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.