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Finding the Fourth Proportional to 179,363.83, 247,617.08 and 138,986.95

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Solution

The fourth proportional to 179,363.83, 247,617.08 and 138,986.95 is: 191,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,363.83 : 247,617.08 = 138,986.95 : x
  2. Step 2: Convert to fraction form
    179,363.83/247,617.08 = 138,986.95/x
  3. Step 3: Cross multiply
    179,363.83x = 247,617.08 × 138,986.95
  4. Step 4: Simplify right side
    179,363.83x = 34,415,542,022.17
  5. Step 5: Solve for x
    x = 34,415,542,022.17/179,363.83
  6. Step 6: Final answer
    x = 191,875.60

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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.