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Finding the Fourth Proportional to 268,325.06, 402,483.49 and 68,643.76

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Solution

The fourth proportional to 268,325.06, 402,483.49 and 68,643.76 is: 102,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,325.06 : 402,483.49 = 68,643.76 : x
  2. Step 2: Convert to fraction form
    268,325.06/402,483.49 = 68,643.76/x
  3. Step 3: Cross multiply
    268,325.06x = 402,483.49 × 68,643.76
  4. Step 4: Simplify right side
    268,325.06x = 27,627,980,091.52
  5. Step 5: Solve for x
    x = 27,627,980,091.52/268,325.06
  6. Step 6: Final answer
    x = 102,964.59

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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.