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Finding the Fourth Proportional to 268,622.76, 402,795.45 and 79,058.49

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Solution

The fourth proportional to 268,622.76, 402,795.45 and 79,058.49 is: 118,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,622.76 : 402,795.45 = 79,058.49 : x
  2. Step 2: Convert to fraction form
    268,622.76/402,795.45 = 79,058.49/x
  3. Step 3: Cross multiply
    268,622.76x = 402,795.45 × 79,058.49
  4. Step 4: Simplify right side
    268,622.76x = 31,844,401,544.31
  5. Step 5: Solve for x
    x = 31,844,401,544.31/268,622.76
  6. Step 6: Final answer
    x = 118,546.92

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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.