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Finding the Fourth Proportional to 245,655.90, 368,442.63 and 68,180.94

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Solution

The fourth proportional to 245,655.90, 368,442.63 and 68,180.94 is: 102,259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,655.90 : 368,442.63 = 68,180.94 : x
  2. Step 2: Convert to fraction form
    245,655.90/368,442.63 = 68,180.94/x
  3. Step 3: Cross multiply
    245,655.90x = 368,442.63 × 68,180.94
  4. Step 4: Simplify right side
    245,655.90x = 25,120,764,849.47
  5. Step 5: Solve for x
    x = 25,120,764,849.47/245,655.90
  6. Step 6: Final answer
    x = 102,259.97

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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.