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Finding the Fourth Proportional to 612,825.34, 919,238.28 and 192,134.02

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Solution

The fourth proportional to 612,825.34, 919,238.28 and 192,134.02 is: 288,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,825.34 : 919,238.28 = 192,134.02 : x
  2. Step 2: Convert to fraction form
    612,825.34/919,238.28 = 192,134.02/x
  3. Step 3: Cross multiply
    612,825.34x = 919,238.28 × 192,134.02
  4. Step 4: Simplify right side
    612,825.34x = 176,616,946,074.29
  5. Step 5: Solve for x
    x = 176,616,946,074.29/612,825.34
  6. Step 6: Final answer
    x = 288,201.11

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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.